After some time later, further discovery is when the BB unit was actuated, that is when the smoke started. Got it on video hearing a slight pop noise not related to BB unit followed by white smoke coming out of the hull. I had the recoil pins set with a jumper as well. Thinking the Matorro BB unit was to much juice/power for v5.3 and caused a part to pop on the board. BB unit no longer fires or recoils. Can physically see the scorch mark. Just a theory. All other part function still, just not BB. Maybe, get a new board and not use BB and convert to flash or drive it and forgot about the barrel firing.