I'm on Fabric 1.20.2, if I'm in godmod and I don't make the bosses attack, nothing happens. So if the boss blocks all the players by attacking them on reconnection, causing them to crash again, that's annoying. I've tried several bosses with the same result, normal monsters don't seem to cause any problems. I'm currently using the "neruina" mod which kills the boss and prevents me from crashing. I'm adding the mod list of the server just in case you want to check.

crash-2023-12-31_03.13.51-server.txt
crash-2023-12-31_03.14.53-server.txt
crash-2023-12-31_03.16.01-server.txt
crash-2023-12-31_03.19.15-server.txt
crash-2023-12-31_03.20.38-server.txt
crash-2023-12-31_03.24.38-server.txt
crash-2023-12-31_03.26.13-server.txt
crash-2023-12-31_04.34.11-server.txt
crash-2023-12-31_04.44.10-server.txt