Is there a way to stop plex from changing my poster art when it updates? I spent a lot of time updating to the art I want to use and then I see that it periodically changes on me. Is there a button to click in my library to have this stop doing these changes to my art/poster selection?
Yes! I have this problem too! From time to time, Plex will just lose everything with artwork. Its massively annoying 
Have yoi tried altering the butler settings so it doesn’t update anything during the night?