In 1.20.1 Minecraft, there is a mod called Origins and they use an internal library called Apoli which has a bug in one of its mixins into LivingEntity that will crash when certain modded entities are damaged. For example, damaging Bumblezone's Cosmic Crystal Entity in 1.20.1 will lead to a crash. No newer Minecraft version has this issue as Apoli devs fixed it in 1.20.2.
However, since they do not backport at all, this mod aims to backport the fix to 1.20.1 to stop the crash with Bumblezone (because Bumblezone is my mod lol).
The original issue report: https://github.com/apace100/apoli/issues/177
The fix I backported with this mod: https://github.com/apace100/apoli/commit/ce5a44b80fcd410c98a303ab93357f3c6668263e
Please do not ask for any port to other Minecraft versions as there's nothing to fix there. Also do not ask me to fix other Origins bug. This mod is specifically focused on the one Origins bug that affects my mods the most.