I'm not sure how SPX backup works. You should try to recover the backup data (on your backup server) to see if you have full access to your files. ATX tech support showed me the correct way to manually back up. First, stop MS Service for 'ATX xxxx Service', then copy both DataStore and 'ATX xxxx Files' folders (xxxx = year). After that, restart MS Service to continue using ATX. When I need to restore my data, stop MS service for ATX, copy my backup data to their locations, restart MS service and done. If you miss any of the 3 steps above, it'll be more complicated to recover your back up data.