Ultris Bug Fixes
Fixes various bugs present in the Ultris: Boss Expansion data pack/mod.
About this Mod
A tiny, simple addon mod/datapack for Ultris: Boss Expansion that fixes a few bugs.
It currently fixes:
- Using Corrupt Dust on an enderman. Before then, provoking a fight with the Corrupted Enderman when converted using Corrupt Dust has it cut straight into its desperation phase. With this mod installed, using Corrupt Dust will finally have the fight initiate properly the way it should.
- The Corrupted Enderman's boss bar max value not actually matching the max health value of the boss, causing the first few blows against it to not budge its boss bar at all.
- The Ultra Wither's command block having a hitbox of its own with active collision, which can obstruct the boss's own wither skull projectiles.
Please let me know if there are any other bugs pertaining to Ultris that I have yet to take care of!
Available Versions
How to Install Ultris Bug Fixes on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set datapack Loader
In the panel under "Egg", select the datapack loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "Ultris Bug Fixes". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1, 1.20
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Ultris Bug Fixes server crashes on startup – what to do?
Most common cause: wrong datapack version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.1). You can switch loaders with one click in the panel.
Is Ultris Bug Fixes compatible with datapack and fabric and forge and neoforge and quilt?
Ultris Bug Fixes officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.20.1, 1.20. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Ultris Bug Fixes – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Ultris Bug Fixes consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
Rent Modded Server
Install Ultris Bug Fixes with just one click on your server.