I usually can understand and fix the wrong poster / season situation … but not that time:
the show is here in theTVDB: https://thetvdb.com/series/the-little-murders-of-agatha-christie
I just have the 2 last episodes of season 3 in a folder and I should get the poster and backgrounds of here: Les petits meurtres d'Agatha Christie - Aired Order - Season 3 - TheTVDB.com
The image of the episodes are the good one, but not the poster & the background…
the poster is that one: https://artworks.thetvdb.com/banners/posters/84422-6.jpg
and the backround that one: https://artworks.thetvdb.com/banners/fanart/original/84422-6.jpg
I don’t understand why… any idea?