Two comments from my side…
- Please check out the post about recent (sort of) changes to the Synology platform… you might need to follow those instructions for Plex to keep properly seeing your content:
Plex Media Server security changes for Synology users - Your files are named wrong – at least not in the way Plex likes them to be named (w/
Abeing the season # andBbeing the episode #):- your naming:
[show name] - AxBB - [episode name].avi - expected naming:
[show name] - sAAeBB - [optional episode name].avi
- your naming:
As for #2… “it always used to work fine for me” is no guarantee it’ll keep working 