By spamming your scroll wheel or timed fast weapon switching the size of your guns becomes increased to rediculous sizes, the issue here is that the projectiles of the weapons come out of the enlarged barrel which makes some weapons unusable. 

Also the white flashing effect around the characters started when we began messing around with this bug.

Sometimes i was able to get my guns back to regular size be positioning my cursor close to my character and then spamming weapon switch again.

We had to abort this season because it became unplayable.

Diagnostics - 2023'09'09 @1747'12''102.rar

Steam_0x0110000103e12ec1_01.ctr my save file

Steam_0x0110000104b19a5e_01.ctr coop partner save file (session host)

player&usersettings.rar