I'm experiencing a weird issue where the episode thumbnail is lost/missing after an TV episode is marked as watched. The thumbnail is fine when the show is first added to the library but immediately after Kodi updates the episode as "Watched" the thumbnail is replaced with the standard Kodi blue film reel placeholder image. This appears to only be impacting Kodi, as the images are all fine when viewed on the server.   Is this a common issue? Anyone else seen it before?   Client is Emby (4.1.