From my playthrough - and some comments of other people who have reported this in the comments, it seems the Overwatch mechanic is being bugged and seems to be cropping up recently and, as far as checking goes, that the Akimbo Mod is seemingly the culprit, i'm hoping this issue gets some awareness and is given attention as the Akimbo Class is a really fun and enjoyable experience, and would hate to see a bug ruin it.

I have tried clearing config - It seems to work but I'm still testing around, if anyone finds any temporary solutions please comment down!