Occasionally while playing Yareli and switching into operator mode, the operator will become immortal and will also become incapable of switching back to the warframe. The game continues normally, with operator health and shields grayed out and the operator becoming invulnerable, however extracting while in this state results in a mission failure. I have never seen this bug while playing any other frame, and I haven't kept track of what might cause it but I believe I have only ever seen it in excavation and arbitration missions.
