Watched status issues

I have trouble when I watch on a windows Browser, on my iPad, or ROKU the watched status of a particular PRIOR show doesn’t change, so when I press play, it always goes back to an old show. I tried marking the show, entire season, etc. as watched and episode #2 (in this example) just can’t be fully marked as watched despite me trying many ways. I am running plex on a qnap NAS.

Is there some type of DB that is having issues on the back end that won’t let an episode watched status change?

Enable ‘debug’ logging on your server (do not enable ‘verbose’)
Restart Plex Server
Wait 3 minutes, with out doing anything in Plex
Grab log files and search for presence of the word corrupt in the Plex Media Server.log file

If there are messages about database corruption, try to repair it:
https://support.plex.tv/hc/en-us/articles/201100678-Repair-a-Corrupt-Database