I’m on latest Plex server for Ubuntu. In webmin, Movies->All-> New Filter → Collection
Choose one. Now on the left click the checkmark to select multiple titles. Then the pencil to edit. Click Tags. Now remove the collection. That works, but the collection is still listed. Now choose a different collection and repeat the above… NO COLLECTION IS SHOWN. You have to get right out of your filtered list and go back in (now the previously removed one is gone) and then it works again, exactly once.
SUPER annoying because I’m trying to go through a long list of unwanted collections and remove the tags. Since there’s no bulk editor, I’m left trying to use this interface… and when that fails due to a bug like this… well, it sucks 
Hope you can fix it ASAP, even though I’m sure this will be perceived as minor to anyone NOT trying to do this right now lol
