Beeping noises while playing co op

i bought my copy of BHC yesterday for ps4, and while playing co op with my buddy i was experiencing beeping noises sort of like Morse codes during gameplay. Is anyone else having this same issue? i also muted my TV the sounds aren’t coming from the PlayStation.

Quite possibly the shield recharge bug. Happens on a number of characters where for some odd collision of shield capacity and recharge rate your shield is constantly recovering to 100% (the ‘beep’ is to let you know it’s ready.)

Edit: the precise conditions also depend on your skill tree and BAR stats, since these can alter the capacity & rate.