This has never happened to me, but I suspect that what you're doing is what's causing it. If you get a wing clipped and it's flailing to the ground, the drones will follow if you're not in control. Once the damaged bird gets too far away from the drones they go boom. When you bail from a lead bomber, a drone becomes lead until you run out of bombers, so bail from that damaged SOB and you won't have this issue anymore.