Gun stops shooting after a few rounds

I have been playing redsec and since 3 days my gun randomly stops after a few bullets and becomes semi auto for some reason.

i have confirmed my mouse is not an issue and even in the firing range its completely fine, its just when i see an enemy and fire at him thats when the bug happens.

Its not a specific gun, happens with all rifles and smgs and i have confirmed the gun is in auto state while its shooting burst shots.

I have no idea how this started.

i have removed all the changes which i made to the key binds still it didnt fix.

Idk what else to do anymore