Unable to add "New Library" since upgrade

[Bonznumber1]

I know there are other posts with a similar problem but the steps in them do not resolve the problem so I'm hoping for a little help.

My current install of Jellyfin was upgraded from 10.8.9 to 10.10.3 in December but I didn't notice this problem until today. I have since downgraded to 10.10.2 to attempt to resolve the problem with no luck.

So here's what's happening:

     All of my Libraries from before the Upgrade to 10.10.3 are working fine and if I add new Movies\shows to them they get added and everything is happy.
I have since decided that I am going to pull all of my Christmas movies to an external drive that I can unplug and set aside when it's not Christmas so I moved every Christmas movie from the movies folder to an external drive and attempted to add it as a library. That's when I got the first "There was an error adding the media path and please ensure the path is valid and Jellyfin has access to that location"  

After getting this a few times I hit the forums and found that it is likely a permission problem.  So I went through and made sure all the permissions were set to "full control" For "Everyone", "Guests", and "Users" and no change. 

So I made a folder called "Christmas" in my main drive that Jellyfin uses and moved everything there.  Same error.

Created a folder call "TV" on the C:\ drive added 1 video. Same error

Just to see I tried adding a Library called "Movies 2" and pointed it to the same folder as "Movies".  Same error.

This is when I did a backup and uninstalled 10.10.3 and installed 10.10.2  No change.

So here's what the current setup looks like

Jellyfin 10.10.2
Windows 11 pro
16gb ram

Drives: 
C: Main install 
C:\TV - Not Working

D: Main Share
D:\Christmas - Not Working
D:\Movies - Working
D:\Other - Working
D:\TV Shows - Working

Y: USB External
Y:\Movies\Christmas - Not Working

Z: Synology NAS. - Been broken for a while keep putting off fixing it

A quick note.  The Permissions on the D and Y drive are set Exactly the same and they are set on the drive with inheritance turned on.  I have confirmed that D:\Christmas and D:\Movies have the exact same permissions.

I have attached the log file from today I cleared all logs before the 10.10.3 install so this is everything going on since then.

Any help would be greatly appreciated!

[TheDreadPirate]

Remove Z: from any of your libraries. It seems to think the media still exists so the same content on C:\TV is getting marked as duplicates and are skipped.

Code:

[2025-01-15 15:26:50.399 -06:00] [INF] [17] Emby.Server.Implementations.Library.LibraryManager: Found duplicate path: "c:\TV\Schitts Creek (2015) S04 (1080p ****** H265 SDR DDP 2.0 English - *****)"

I don't see any mentions of D:\Christmas or Y: at all in the log. When you say they aren't working, do you mean you can't even add them to a library?

[Bonznumber1]

I'll be dammed, the second I removed any links to Z everything started updating!

Thanks A Bunch!