I get the same bug every single match I play, and like everyone else is saying it almost always happens after exiting a vehicle. I would like to add though that for me the specialist gadgets do reload, like with sundance her grenades do regenerate, but I cant switch between the 3 options of them, im stuck at whatever type of grenade I had selected before the bug occurs. Also the ammo count on my weapon is usually totally off, or just shows that I have 0 ammunition but the weapon keeps working aside from not being able to aim, which is kind of important id say. Sucks if you have an AA rocket launcher equipped when the bug happens because that becomes totally useless.