Kodi changed skin on restart

The wife was watching live tv yesterday and Kodi suddenly locked up. I shut Kodi down and restarted it and when it started back up it had switched from the Aeon Nox skin to the Confluance default skin. I switched it back over to Aeon Nox and then had to redo a number of settings such as guide etc. Itworked fine last night until the system was shut down overnight. I put the computer to sleep as I always do and this morning upon restart to watch TV it had switched back to Confluance again. Any idea what could cause this to happen by just going a restart? The only settings that came back were the scheduled recordings, but I think that is because they are retained by the PVR back end Nextpvr. I am running 16.1 on a windows 7 machine. I checked the logs and nothing looked out of the ordinary. It is like the user settings were not retained or got corrupted. Do you think if I did a uninstall and reinstall it would help?