Minecraft 1.21.1
Mod pack: ATM ver. 1.5

When making a new spawnegg from different bees ( tried coal bee, redstone bee, draconic bee ) by swabbing them, combining with seed and xp bucket, used on a chicken to get the spawnegg and rightclicking with the egg in the hand crashing the game and deleting the egg from my inventory.

Easy to reproduce as it happens every time I do this ( tested 3 times )

the log you provided does not have the crash

Can I send the crash report from minecraft's crash window? I can just make a new spawnegg, and let it happen again

there's a crash-reports folder next to the logs folder

https://gist.github.com/SgtMorrigahnGaming/789b7a6199444c14f7b9e66173bbbfe2

I have that fixed locally for next release. The problem is mob grinding utils, it can't handle NBT entities so it just creates a spawn egg without a bee type which doesn't work. It's not supposed to crash, that part is new.

Thanks alot for quick reply <3

Yes

will this fix entities that have already been spawned?