Well, go on! What was it? I thought for sure it was due to emp stunning me, but then I saw a turret do it and they can't get emp'd I think.
They can, actually. That's what threw us for a long time. There were a lot of ways the bug could manifest.
Had to do with the under-the-covers queued command system in the sim. Whenever you pop a special (or get stunned or knocked back, etc.), the sim queues a "command" to re-engage with your previous target. If the target died at a very specific time between those two events, well, then you'd have the bug.