When reading the following ...
PLEX Media Server Expands Storage Options
Your server’s app data (metadata, background art, and more) can now be moved to USB storage devices. From the PLEX app, go to Settings > Plex Media Server > Storage Location.
Does that mean stuff like WATCH states and so on are no stored on the USB drive ?
Why I am asking this is, I would like to factory reset my nvidia shield but I don't want to lose my watch status inside PMS.
I don't mind rebuilding the libraries, it's just the WATCH STATE would be horrible to restore manual by hand.