Serious bug after player die

[Icenodb]

Expected Behavior

Actual Behavior

Steps to Reproduce

①Enter a server ②gamerule keepInventory true ③Pick up an animal ④Be attacked to death ⑤The arm disappeared ⑥log out the server ⑦Try to log in to the server again ⑦Unable to log in to the server

Version of Minecraft, Carry On, Forge

1.16.5；1.15.5.15；36.2.2

Screenshots encouraged

[Tschipp]

This only happens on a server?

[rostikmak]

Hello, i has the same problem. Please fix it :( This only server problem. Help :c

[Tschipp]

Is there a log?