Celestisynth Fix
Fixes a memory leak issue caused by static mappings. Free Minecraft Java mod for 1.20.1.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.20.1 on Forge. On other versions it may install and then do nothing.
Celestisynth's CSAnimator uses static maps to link a player to their custom animations. When you leave a world or change dimensions, the garbage collector deletes the non-static ones. buut since this is a static mapping. Garbage collector does NOT delete it. Hence, the memory leak accumulates until the game is unplayable at some point.
The fix is straightforward. It legit just cleans it manually when u enter or leave a dimension.
Shouldn't cause a issue at all.
After playing for 8+ hours. This mod has saved around 400+ MB of ram. (Potentially more)
- Ships as celestisynth_fix-0.1.jar — drop this file into the mods folder
- Download size: 4 KB
- Download link checked 23 Aug 2026 — working
These come from our own check of the pack file, not from the source page.