Help with orphaned data in logs after changing paths

[Drake97]

I would first try removing the library, then re-adding it. Jellyfin will retain the metadata. No, there's no auto backup in 10.10.x. That's up to you.

In the end I had to recreate the missing folders, because I accidentally deleted them: 

Code:

sudo mkdir -p /var/lib/jellyfin/root/default
sudo mkdir -p /var/lib/jellyfin/metadata
sudo chown -R jellyfin:jellyfin /var/lib/jellyfin
sudo chmod -R 755 /var/lib/jellyfin

The downside is that I had to add my whole library again (almost 2,000 movies), rescan everything, and now I’m regenerating the trickplay images.
Can you please confirm if those permissions look right for Jellyfin on Ubuntu? Also, do trickplay images only get stored under
/var/lib/jellyfin/metadata, or does Jellyfin save them somewhere else too?

Thanks a lot!