I have a horrible suspicion that all the panel instruments failed or became unreliable at the same time as the second engine failed due the battery being depleted by relight attempts.
If one engine is running....generator ON.....tell me about draining the Battery again please?
How you propose that would happen?
How many Engine Re-Start Attempts would it take to drain the Battery with a Generator running?
Seems a bit of a stretch.....but around here some very long arms have been seen of late.