Scanning library not removing items/finding metadata match

[Dreakon13]

Server Version#: 1.21.1.3876
Player Version#: 4.47.3

So, on my Synology NAS DS220+ I installed a new WD Red 12 TB HDD today. Got it all initialized, new storage pool, new volume… basically totally separate from my existing HDD. Moved some media over to the new HDD to test with. For simplicity sake, since I don’t have a ton of media, I uninstalled Plex from Volume 1 and installed it fresh onto the new 12TB Volume 2.

Seems like it’s working fine, but I set up libraries for some of this media I moved onto the new HDD and when I scan, it doesn’t appear to even try to find a match. So the show has a generic title from my folder I presume, episodes aren’t getting named, etc. If I manually go to “Match…” and pick the item from the list (it’s the only item in the list)… everything starts to go. But it always used to do that on its own in the scan.

Even more bizarre, if I do the Plex Dance… which I only recently learned was an actual thing lol, I started doing that on my own a while ago just from trying stuff myself… scanning the library isn’t removing the TV shows I added (that never tried to find a match). It’s not even tagging them as unavailable or ready to be trashed. The only way I can actually remove them is deleting the library entirely and re-creating it.

I’m kinda wondering if when I uninstalled Plex, it didn’t get rid of everything maybe and now it’s really confused. I manually deleted the “Plex” shared folder and user. Could it be that? Maybe it’s some sort of permissions issue, though I made sure the plex user has read access to the media folders (which is all it’s ever needed before). What else should I maybe look for?

Or any other ideas why this might be happening?

Thank you.

[Dreakon13]

Thank you for the reply.

If it’s normal that items in Plex may not get removed when the files/folders are deleted (or moved) and the library re-scanned, then I guess there isn’t a problem. It’s just different than how it was working prior to the work I did yesterday, so I wanted to make sure I didn’t miss something. I will keep those additional steps in mind.

I’m curious why moving my media to the new volume, re-scanning everything from scratch… absolutely none of my shows are finding a match to TheTVDB until I go in and “Match…” them myself. It’s not a huge deal, I can still manually find the match and it works… but again it’s a step I didn’t have to before.

Appreciate your time and help.

EDIT: Nevermind. I moved everything else over to the new volume last night, scanned the libraries in Plex just now to load it all in and it is picking up the TheTVDB metadata for some of them at least. So it’s working… just a bit spottier than it was before. No biggie. Thanks again.