Great job fixing this issue!
I had this same issue EXCEPT: When I saw the message that the Active VC was not in this bay, I connected to what I thought was the backup VC, and tried to type my ID and password. It makes perfect sense to me that you saw the message that the OA must have been replaced or set back to factory, because my ID and password didn't work. Now, my question,
Can I fix this issue without reconfiguring the VC Domain from scratch? Maybe, if I reset one VC module to factory defaults, then let it resynch with the other module I won't lose my settings? Or maybe if I do them one at a time, I won't lose my settings?