Mod:
MutantsZombies-0.9.4-Forge-mc1.20.1.jar

Log:
latest.log

This was an issue I had since 0.9.3. A temporary fix I found is to use the fabric version

thanks for reporting.
I just released version 0.9.5, that should (hopefully) fix the issue :)

thanks for reporting. I just released version 0.9.5, that should (hopefully) fix the issue :)

Thanks! Will try it out rn

it works! tysm