I’ve added custom posters to my playlists and they show up on the web app, but when on the iOS app or android TV app the playlist reverts to the old 4-movie-collage poster. What gives? How can I make the posters show up everywhere?
The iOS client does not yet support those custom posters – no idea why. I suppose it’s fair to assume this gap will be closed – though there’s no certainty nor a definite ETA.
Well that stinks.
Hopefully, that feature would get added. I never watch on the web app, that’s just where I organize my library.
Thanks for the info!
Same issue here. I was over creative in putting some nice posters for my playlists together just to find out it doesn’t go on any of my applications 
grrrrr… I should have just had a beer and watch a movie instead.
I have the same issue except I use Android. You stated it is not supported for IOS but you did not say android . . … Am I to assume the same statement?
I switched back to Playlist from Collections because they can be placed on the home screen as a quick way to play the list, unlike how Collections including smart collections are implemented on the home screen.
Since this behavior is inconsistent (not happening on all platforms) I can only assume this is a bug not a feature that just hasn’t been implemented yet. Bugs me.
Well, I observed a visual change when I changed the playlist poster, and the image came through to the android plex player and have a hunch that the resolution or the image type may have something to do it. I have not had time to confirm my observation. I do remember that there was some info on the support site that explained the requirements but cannot find them now.
