Server Version#: 1.29.0.6244
Player Version#: 4.92.0
Whenever I go to upload background artwork for individual episodes of a TV show, it says that the artwork was uploaded successfully, but it does not appear in the artwork selection, nor does the actual background update.
Do you actually mean to set a background or the thumb/preview of the episodes?
Settings the poster seems to work fine for me and shows as the thumb of the episode – I’m actually not aware if any apps are showing a different background for individual episodes.