Sorry. I was able to get into a similar situation where I had a corrupt database after starting PMS over from scratch. For me, it turned out to be a bad usb drive. I got a new usb drive and I do not see a corrupted database anymore. I was able to move my data folder over to the usb drive. Yes, I did have to format it twice like you said. I don’t know when that changed. I remember there use to be an option to just format it as external. I’ve had my PMS on the Shield running for over a week without issues, even after letting the device sleep for a few days. I’ve also uninstalled and reinstalled PMS successfully.
I would first suggest maybe trying another usb drive if you have access to one.
