• [ALA]
  Atlas of Living Australia
• [AfroMoths] De Prins, J., & De Prins, W.
  Afromoths, online database of Afrotropical moth species (Lepidoptera); (Version 2024-03-15). Belgian Biodiversity Platform, Belspo; https://doi.org/10.15468/s1kwuw
• [BHL] The
  Biodiversity Heritage Library; and on; Internet Archive; Note: The linking to the content of Internet Archive is somewhat delicate -- notify me when links break!
• [CoL] Catalogue of Life
  Bánki, O., Roskov, Y., Döring, M., Ower, G., Hernández Robles, D. R., Plata Corredor, C. A., Stjernegaard Jeppesen, T., Örn, A., Vandepitte, L., Hobern, D., Schalk, P., DeWalt, R. E., Ma, K., Miller, J., Orrell, T., Aalbu, R., Abbott, J., Adlard, R., Aedo, C., et al. (2024). Catalogue of Life Checklist (Version 2024-03-26); https://doi.org/10.48580/dfz8d
• [D. Smirnov]
  Russia, Moscow; e-mail: D. Smirnov
• [ESP] :ESP#c Heppner, 1981
• [FE] Fauna Europaea
  Fauna Europaea
• [HBN] Francis Hemming, 1937
  HÜBNER, A bibliographical and systematic account of the entomological works of Jacob Hübner and of the supplements thereto by Carl Geyer, Gottfried Franz von Frölich and Gottlieb August Wilhelm Herrich-Schäffer, Vol 1 & 2
• [Heiner Ziegler]
  Switzerland / Schweiz; www.pieris.ch
• [JHS]
  Japan Heterocerits's Society; (Back Issues); Tinea vols 10-20
• [Karl Hofsäß] Karl Hofsaess
  e-mail: Karl Hofsäß
• [LEPIFORUM]
  Lepiforum; Bestimmung von Schmetterlingen (Lepidoptera) und ihren Präimaginalstadien
• [LepIndex] Global Lepidoptera Index
  Beccaloni, G., Scoble, M., Kitching, I., Simonsen, T., Robinson, G., Pitkin, B., Hine, A., Lyal, C., Ollerenshaw, J., Wing, P., & Hobern, D. (2024). Global Lepidoptera Index. In O. Bánki, Y. Roskov, M. Döring, G. Ower, D. R. Hernández Robles, C. A. Plata Corredor, T. Stjernegaard Jeppesen, A. Örn, L. Vandepitte, D. Hobern, P. Schalk, R. E. DeWalt, K. Ma, J. Miller, T. Orrell, R. Aalbu, J. Abbott, R. Adlard, C. Aedo, et al., Catalogue of Life Checklist (1.1.24.106); https://doi.org/10.48580/dg4lg-49xk
• [MBE] Moths and Butteflies of Europe
  Paolo Mazzei, Diego Reggianti and Ilaria Pimpinelli; http://www.leps.it/
• [MOB] Holloway & Barlow
  Online version of; Moths of Borneo
• [NHM-BMW] Natural History Museum
  Butterflies and Moths of the World; Generic Names and their Type-species
• [PERSEE]
  Annales de la Société linnéenne de Lyon; Bulletin mensuel de la Société linnéenne de Lyon; Publications de la Société Linnéenne de Lyon; Bulletin de la Société entomologique de France
• [SVF]
  Svenska fjärilar; Naturhistoriska riksmuseet; (Sweden)
• [ZOBODAT] Oberösterreichische Landesmuseum
  OÖ. Landesmuseum; ZOBODAT - Literatur
• [iNaturalist]
  iNaturalist
• [maps]
  Warning! The maps are automatically generated from the textual information, and the process does not always produce acceptable result; See about maps for more info.

Universal Minecraft Converter Repack

The Universal Minecraft Converter: A Revolutionary Concept in Minecraft Modding

Minecraft, the sandbox-style video game created by Markus "Notch" Persson, has become a global phenomenon since its release in 2011. With over 200 million registered players across the globe, Minecraft has evolved into a vast and diverse community, driven by its creative freedom and endless possibilities. One of the key factors contributing to Minecraft's enduring popularity is its modding community, which has produced thousands of custom modifications (mods) that enhance, expand, or completely transform the gameplay experience. Among these mods, the concept of a "Universal Minecraft Converter" stands out as a revolutionary idea that could potentially bridge the gaps between different Minecraft versions, mod ecosystems, and even other games altogether.

The Need for Conversion Tools

Minecraft's history is marked by significant changes across various updates, notably the transition from the Java Edition to the Bedrock Edition, which aimed to unify the game's core across different platforms. However, this shift also led to compatibility issues with mods, as the Bedrock Edition's closed nature initially limited modding capabilities compared to the Java Edition. This division created a challenge for the community: ensuring that mods developed for one version could be accessible and functional on another. This challenge is where the concept of a Universal Minecraft Converter comes into play.

The Concept of a Universal Minecraft Converter

The Universal Minecraft Converter would ideally be a tool or software capable of converting Minecraft content (such as worlds, mods, and resource packs) from one version of Minecraft to another, ensuring compatibility and functionality across different platforms and modding ecosystems. This converter would not only facilitate a seamless transition for players and modders but also open up new possibilities for collaboration and content sharing across the Minecraft community.

Potential Features and Functions

1. Cross-Version Compatibility: The converter would need to support a wide range of Minecraft versions, from classic to the latest releases, ensuring that content can be transferred without significant data loss or corruption.

2. Mod Compatibility and Conversion: One of the most critical features would be the ability to convert mods. This would involve not just simple file conversion but also complex logical adjustments to ensure that mods work as intended in their new environment.

3. World Conversion: Worlds, often painstakingly built over hours or years, could be converted to work on different Minecraft versions, preserving as much detail and data as possible.

4. Resource Pack and Texture Conversion: Ensuring that resource packs and textures are compatible across versions, taking into account changes in rendering and game mechanics.

5. Gameplay Mechanics Adjustment: Given that gameplay mechanics can change between Minecraft versions, the converter would need to adjust these mechanics accordingly to ensure a consistent gameplay experience.

Impact on the Minecraft Community

The introduction of a Universal Minecraft Converter would have a profound impact on the Minecraft community:

• Enhanced Modding Community: By breaking down the barriers between different Minecraft versions and mod ecosystems, the converter would foster a more unified and collaborative modding community.

• Increased Content Accessibility: Players would have access to a much broader range of content, regardless of the Minecraft version or platform they use.

• Streamlined Development Process: Developers could focus on creating new content rather than version-specific adaptations, accelerating innovation within the game.

• Cross-Platform Play: It could also pave the way for more seamless cross-platform play and interaction, aligning with Minecraft's vision of a unified gaming experience.

Challenges and Limitations

Despite its potential, developing a Universal Minecraft Converter faces significant challenges:

• Technical Complexity: The conversion process involves dealing with complex data structures and ensuring that changes in game mechanics and APIs across different versions are accounted for.

• Copyright and Licensing Issues: Ensuring that the converter complies with Minecraft's terms of service and intellectual property rights could be a hurdle.

• Community Acceptance: The converter's adoption would depend on its ease of use, reliability, and the community's willingness to embrace cross-version compatibility.

Conclusion

The Universal Minecraft Converter represents a groundbreaking concept with the potential to revolutionize the way the Minecraft community interacts with the game. By addressing the fundamental challenges of compatibility and conversion, it could unlock new opportunities for players and modders alike, enhancing creativity, collaboration, and the overall gaming experience. While significant technical and legal challenges exist, the potential benefits of such a tool make it an exciting and worthwhile pursuit for the Minecraft community.

The Ultimate Solution for Minecrafters: A Comprehensive Guide to the Universal Minecraft Converter

Minecraft, the wildly popular sandbox video game, has captured the hearts of millions of players worldwide. With its creative freedom, vast blocky worlds, and survival mechanics, it's no wonder that Minecraft has become a cultural phenomenon. However, one of the biggest challenges Minecrafters face is converting their creations from one version of the game to another. This is where the Universal Minecraft Converter comes in – a game-changing tool that simplifies the conversion process and opens up new possibilities for players.

The Problem of Incompatibility

Minecraft has undergone numerous updates and revisions since its release in 2009. As a result, different versions of the game have emerged, each with its unique features, blocks, and mechanics. While this evolution has helped keep the game fresh and exciting, it has also led to compatibility issues between different versions.

Players who create custom maps, mods, or resource packs often struggle to transfer their work from one version of Minecraft to another. For instance, a map designed for Minecraft 1.14 may not be compatible with Minecraft 1.16, resulting in errors, glitches, or even complete crashes. This incompatibility issue has frustrated many players, causing them to lose hours, even days, of hard work.

Introducing the Universal Minecraft Converter

The Universal Minecraft Converter (UMC) is a revolutionary tool designed to tackle the compatibility problem head-on. This powerful software allows players to convert their Minecraft creations from one version to another, ensuring seamless compatibility and functionality. universal minecraft converter

The UMC supports a wide range of Minecraft versions, from classic 1.0 to the latest releases. It can convert various file types, including maps, worlds, mods, and resource packs. With the UMC, players can:

• Convert maps and worlds from older versions to newer ones, preserving their hard work and favorite creations.
• Transform mods and resource packs to work with different Minecraft versions, expanding their gameplay possibilities.
• Easily share creations with friends playing different versions of Minecraft, eliminating compatibility concerns.

How the Universal Minecraft Converter Works

The UMC's intuitive interface and sophisticated algorithms make the conversion process remarkably straightforward. Here's a step-by-step overview:

1. Input and Output Selection: Users select the input file (the Minecraft creation they want to convert) and choose the desired output version.
2. Analysis and Optimization: The UMC analyzes the input file, identifying potential compatibility issues and optimizing the conversion process.
3. Conversion: The software performs the conversion, translating blocks, items, and mechanics to match the target version.
4. Validation and Verification: The UMC checks the converted file for errors and ensures its integrity.

Benefits of Using the Universal Minecraft Converter

The UMC offers numerous benefits to Minecrafters, including:

• Time-Saving: No more rebuilding or reworking creations from scratch due to compatibility issues.
• Increased Creativity: With the UMC, players can experiment with different versions, mods, and resource packs, expanding their creative possibilities.
• Enhanced Collaboration: The UMC facilitates sharing and collaboration among players, regardless of the Minecraft version they're playing.
• Improved Modding and Resource Pack Development: Modders and resource pack creators can easily adapt their work to different Minecraft versions, reaching a broader audience.

Real-World Applications and Success Stories

The Universal Minecraft Converter has already helped countless Minecrafters overcome compatibility challenges. Here are a few notable examples:

• Map Creators: A popular mapmaker used the UMC to convert their critically acclaimed adventure map from Minecraft 1.12 to 1.16, ensuring that their fans could continue to enjoy the map on the latest version.
• Modders: A modding team utilized the UMC to update their popular mod to work with Minecraft 1.18, extending its lifespan and attracting new players.
• Resource Pack Developers: A resource pack creator used the UMC to convert their pack to work with multiple Minecraft versions, increasing its compatibility and downloads.

Conclusion

The Universal Minecraft Converter is a game-changing tool that has revolutionized the Minecraft community. By simplifying the conversion process and ensuring compatibility across different versions, the UMC has opened up new creative possibilities, facilitated collaboration, and saved countless hours of work.

Whether you're a casual player, a seasoned pro, or a content creator, the Universal Minecraft Converter is an essential tool to have in your Minecraft toolkit. With its user-friendly interface, robust features, and impressive conversion capabilities, the UMC is sure to become a staple in the Minecraft community.

Get Ready to Unlock Endless Minecraft Possibilities

Don't let compatibility issues hold you back from enjoying Minecraft to the fullest. Try the Universal Minecraft Converter today and discover a world of limitless creativity, collaboration, and fun!

Frequently Asked Questions

• Is the Universal Minecraft Converter safe to use?
  • Yes, the UMC is designed with safety and security in mind. It's free from malware and viruses, ensuring a risk-free experience.
• What Minecraft versions does the UMC support?
  • The UMC supports a wide range of Minecraft versions, from classic 1.0 to the latest releases.
• Can I convert multiple files at once?
  • Yes, the UMC allows batch conversions, making it easy to convert multiple files simultaneously.

Get Started with the Universal Minecraft Converter

Ready to unlock the full potential of Minecraft? Download the Universal Minecraft Converter today and start exploring new creative possibilities, collaborating with friends, and enjoying the game like never before!

The Universal Minecraft Converter (now part of the Universal Minecraft Tool) is a specialized software designed to transfer worlds between different versions of Minecraft, including Java Edition, Bedrock Edition, and various Legacy Console editions (like PS3, Xbox 360, and Wii U).

For a look at how this tool handles advanced features like creative mode in hardcore worlds, check out this guide:

The converter is a specialized program used to translate world data between various editions of the game. It is now part of the broader Universal Minecraft Tool suite, which requires a paid subscription to access its full features. Key Capabilities

Java to Bedrock: Converts worlds from the original PC version to the modern Bedrock codebase used on Windows 10/11, consoles, and mobile.

Console Transfers: Supports moving worlds from older console versions (like Xbox 360 or Wii U) to modern editions.

Item Retention: While player-specific data (like XP levels) often doesn't transfer, items stored in chests are typically preserved. 🚀 How to Convert Your World

The process generally involves taking a world folder from one edition and processing it through the software to output a compatible file for another.

Select Input: Open the tool and select the platform where your current world is located (e.g., Windows 10/Bedrock).

Select Output: Choose the target platform (e.g., Java Edition).

Start Conversion: The tool re-codes the world data to match the destination edition's format.

Save & Import: Save the converted world and move it to the appropriate game directory on your device. 💡 Important Considerations

Before using a converter, keep these technical limitations in mind:

Version Compatibility: Converters often work best when the source and target game versions are closely aligned (e.g., converting a 1.16 Java world to a 1.16 Bedrock world).

Redstone & Mechanics: Because Java and Bedrock have different underlying code (Java vs. C++), complex Redstone machines or mob farms may break during conversion.

Backups are Essential: Conversion can occasionally lead to world corruption; always create a backup of your original world before starting. Java Edition Bedrock Edition Language Performance Resource-heavy Highly optimized Multiplayer Cross-platform Redstone Quasi-connectivity Faster piston reaction Cross-Version Compatibility : The converter would need to

For those looking for free alternatives, Microsoft recommends Chunker, an open-source web-based tool for world conversions.

Here’s a ready-to-use social media or blog post about a universal Minecraft converter (a tool that converts worlds, maps, or builds between different Minecraft editions or versions).

Title:
🔄 One Tool to Rule All Your Minecraft Worlds: The Universal Minecraft Converter

Post Content:

Tired of losing builds when switching between Java Edition and Bedrock?
Frustrated because your friend on mobile can’t join your Java world?

Meet the Universal Minecraft Converter – a must-have tool for every serious player and server admin.

✅ What it does:
Convert worlds, structures, and even schematics between Java, Bedrock (Win10/Mobile/Console), Pocket Edition, and older legacy formats.

✅ Why you need it:
– Migrate your 5-year-old Java survival world to Bedrock for cross-play.
– Turn a Bedrock flatworld into a Java superflat for redstone testing.
– Recover corrupted chunks or convert between versions in just a few clicks.

✅ Top picks:

• Amulet Editor – Best for world conversion & editing (free, open-source)
• Chunker – Web-based, no install needed (great for quick Java ↔ Bedrock)
• MCCToolchest – Powerful CLI for batch converting legacy worlds

⚠️ Note: No converter is 100% perfect – always back up your world before converting! Redstone, entity behaviors, and modded blocks may need manual fixes.

👇 Have you ever lost a world to an edition change? Let me know below!

Hashtags:
#Minecraft #MinecraftConverter #JavaToBedrock #BedrockToJava #MinecraftWorlds #MinecraftTips

The Universal Minecraft Converter (UMC), now part of the Universal Minecraft Tool suite, is a specialized software designed to transfer Minecraft worlds between different game editions and platforms. It addresses the fundamental incompatibility between Java Edition (the original PC version) and Bedrock Edition (modern consoles, mobile, and Windows 10/11), as well as Legacy Console editions. Bridging the Edition Divide

Minecraft exists in two primary ecosystems with different underlying codebases: Java (using NBT data) and Bedrock (using LevelDB). These differences usually prevent a player on an Xbox or iPhone from moving their long-term survival world to a high-end PC to use mods or specialized Java servers. The Universal Minecraft Converter bridges this gap by mapping block IDs, entity data, and item properties from one format to another. Core Capabilities and Features

Comprehensive Data Transfer: Unlike basic tools that only convert terrain, the Universal Minecraft Tool converts: Tile Entities: Chest contents, furnace fuel, and sign text. Entities: Mobs, horses with armor, and tamed pets.

Biomes: Ensuring the climate and colors match the original world.

Unlimited World Size: Tested on worlds exceeding 200GB, it avoids the strict size limits often found in free web-based alternatives like Chunker.

Technical Optimization: The tool includes automatic lighting recalculation to prevent "dark worlds" and heightmap fixes to ensure beacons and maps work correctly in the new edition.

Multi-Platform Support: It supports conversions between Java, Bedrock, Xbox 360, Wii U, and PS3. Community and Professional Impact

For the community, this tool represents "digital legacy preservation." Players who have spent years building a world on a console that is now reaching its end-of-life (like the Wii U or PS3) can "rescue" their creations and bring them into the modern Bedrock or Java versions.

In professional settings, it is used by build teams and YouTubers to move massive projects between editions for cinematic rendering or cross-platform server releases. This flexibility allows creators to use the advanced modding tools of Java Edition and the broad accessibility of Bedrock Edition for the same project. Limitations and Alternatives

While powerful, the converter is paid software, requiring a subscription for access. Users on a budget often turn to alternatives:

Chunker: An official, free web-based tool for smaller worlds (typically under 500MB).

Amulet Editor: A free, open-source world editor that supports some conversion but may lack the specialized entity-handling depth of UMC.

OS Restrictions: The tool currently requires a Windows computer to run, though it can process worlds from other platforms once they are transferred to the PC.

💡 Pro-Tip: Always backup your world before using any conversion tool. Minecraft updates frequently, and unofficial conversions can occasionally lead to lost items or corrupted chunks.

The Ultimate Guide to the Universal Minecraft Converter Whether you’ve spent years building a masterpiece in Minecraft: Java Edition and want to show it off on your Xbox, or you’re a Bedrock player looking to join a high-powered Java server, you’ve likely run into the "Format Wall." Since Java and Bedrock are built on different engines (Java vs. C++), their world files are fundamentally incompatible.

The Universal Minecraft Converter (UMC) is one of the most popular third-party solutions for bridging this gap. Here is everything you need to know about how it works, its limitations, and how to use it. What is the Universal Minecraft Converter?

The Universal Minecraft Converter is a paid tool—now part of the broader Universal Minecraft Tool suite—designed to convert worlds between different editions of the game. It is primarily used to move worlds between: Java Edition (PC/Mac/Linux) Bedrock Edition (Windows 10/11, Mobile, and Consoles) Key Features and Capabilities

Cross-Platform Porting: Easily move a world from a Windows 10 Bedrock instance to a Java instance and vice versa.

Item Retention: While player-specific data (like XP or ender chest contents) often doesn't transfer, items placed inside standard chests generally do. Mod Compatibility and Conversion : One of the

Chunk Handling: The converter translates loaded chunks into the new format. Critical Limitations to Keep in Mind

Before you start converting, it is important to understand what the tool cannot do:

Unloaded Chunks: The converter only transforms parts of the world you have already explored. If you enter an unexplored area in the converted world, the game will generate new terrain using the target edition's random number generator (RNG), which can lead to "chunk borders" where the terrain doesn't match up.

Technical Mods & Plugins: Java-specific mods and Bedrock-specific server plugins will not work after conversion.

Mechanics Differences: Redstone behavior and combat systems differ between the two versions. A complex redstone machine built in Java may break when converted to Bedrock. How to Convert a World (Step-by-Step)

If you are moving a world from Bedrock (Windows 10/11) to Java, follow these general steps using the software:

Open the Converter: Sign in to the Universal Minecraft Tool.

Select Source: Click the Windows 10 button to see your local Bedrock worlds. You can also click "Browse .mcworld" to find a specific file.

Select Destination: Choose the PC (Java) button as your output platform.

Start Conversion: Click the Start button. Once finished, the Java button will typically show a green border indicating success. Alternatives to World Conversion

If you don't want to permanently convert your world, there are other ways to bridge the gap:

Typical conversion workflow

1. Backup the source world (always).
2. Choose target edition/version and conversion options (preserve player data, map generator, entity handling).
3. Run a dry-run preview to see warnings and unmapped items.
4. Review the generated mapping log for manual tweaks (e.g., remap modded blocks to placeholders).
5. Execute the conversion.
6. Test the converted world in the target client; fix issues like missing textures, broken redstone, or altered mob behavior.

Conclusion: Universal Does Not Mean Perfect

The Universal Minecraft Converter is a reality, but it requires patience. If you want to move your PS4 city to your PC, or your Java Skyblock map to your Nintendo Switch, tools like Chunker and MCCToolchest will get you 95% of the way there. The remaining 5%—inventories, redstone, and maps—will require manual repair.

The Golden Rule: Always keep a backup of your original world file. Conversion is like teleportation. It is miraculous when it works, but you want a spare copy in case something gets lost in the void.

Are you ready to break down the walls between Minecraft editions? Download a converter, backup your world, and start building without borders today.

Universal Minecraft Tool (UMT) —widely known for its Universal Minecraft Converter

—is a premium software suite designed to transfer worlds between the various editions of Minecraft, including Java, Bedrock, and Legacy Console Core Capabilities Multi-Platform Conversion

: It supports moving worlds between Windows 10/Bedrock, Java Edition, and older consoles like Xbox 360, PlayStation 3, and Wii U. Comprehensive Data Transfer

: Unlike basic converters that only move terrain, UMT preserves items, containers, sign text, mobs, and biomes High Performance

: The tool is built to handle massive world files, including those exceeding 100s of gigabytes, without size limits. Built-in NBT Editor

: It includes an editor to modify internal game data, such as

difficulty settings, game rules, player data, and scoreboard values Key Features of the Converter Universal Minecraft Tool World Converter

specifically addresses the differences in how different versions of the game store data: Block Mapping

: Automatically converts blocks from one edition to their closest equivalent in another (e.g., converting Java-specific mechanics to Bedrock). Entity Retention : Maintains entity properties, such as enchantments on armor or contents of chests Map & Structure Preservation

: Ensures that custom maps and player-built structures remain intact during the transition. Usage and Accessibility The tool was created by

, the developer behind the first-ever world converter and multi-platform NBT editor. While it offers a free trial

, full access to its suite of conversion and pruning tools typically requires a subscription through Universal Minecraft Tool on how to convert a specific world from Java to Bedrock

Practical tools and approaches used in the ecosystem

• Use of existing libraries/parsers for NBT, Anvil, LevelDB, and schematic formats.
• Community-maintained mapping tables for block/item name translations.
• Open-source projects often provide partial solutions (structure converters, resource pack converters).
• Containerized, chunked conversion pipelines to handle large worlds reliably.
• GUI-based converters for general users and CLI tools for automation in server contexts.

Why Is This Difficult? (The "NBT" Problem)

To understand why UMC is necessary, you have to understand the complexity.

• Block IDs: In Java Edition, a block might have a numerical ID of 1. In Bedrock, that same block might be 10 or have a completely different text-based identifier.
• Data Tags: The way the game stores information about a chest's inventory or a mob's health differs between versions.
• World Height: Java recently increased world height (to 320) and depth (to -64). Older Bedrock versions had a hard limit of 256 blocks. The converter has to "guess" where to put blocks that exist outside the limits of the target version.

UMC handles these database mappings automatically, remapping block IDs and fixing corrupted data chunks so the world doesn't crash upon loading.

6:00 – Advanced: Modded / Custom Blocks (Amulet Editor)

Visual: Amulet Editor UI. Audio: "Chunker breaks modded blocks. Use Amulet Editor (open source). It preserves block IDs. Convert a modded 1.12.2 world to 1.20.1 by mapping 'mod:custom_block' to 'minecraft:stone' or a new block."

3. Universal Minecraft Converter (The Namesake)

Supported formats: Java Beta to Release, Bedrock, Pocket Edition (MCPE). Platform: Windows (Paid).

There is actually a software specifically named "Universal Minecraft Converter" sold by a third-party developer. It focuses heavily on Bedrock-Java bi-directional conversion.

• Pros: One-click operation, preserves NPC data.
• Cons: Paid software ($10-15), slower updates, no Legacy Console support.

Pro Tips for a Flawless Conversion

To get perfect results from your universal Minecraft converter, follow these rules:

• Purge the Player Data: Before converting, delete your player inventory files (level.dat for Java, player.dat for Bedrock). It is safer to empty your ender chest and inventory into a normal chest, then convert. Player position data is the most common corruption source.
• Convert "Down" Carefully: Converting a 1.20 Java world down to 1.16 Bedrock works. Converting a 1.20 world to Alpha (2009) will fail catastrophically because Cherry Groves and Deep Dark biomes didn't exist.
• Use "Repair" Tools: After conversion, open the world in your target game. If you see "Missing chunks" or "Void holes," run the built-in "Optimize World" (Java) or "Recreate Chunks" (Bedrock) function.