Mobile Beta release: 2026.8.0: https://forums.plex.tv/t/plex-for-mobile-android-ios-beta-release-notes/912796/65
Forum Discussion: https://forums.plex.tv/t/android-plex-doesnt-load-movies-if-in-a-collection/922582
This problem has been going on since the New Plex Experience apps were released in March of last year. It only affects titles in static (manual) collections; it does not affect titles in dynamic (smart) collections. This issue was most apparent in Android phones, where the titles would either take forever to load or not load at all.
The problem is weird because static collections are "simple" SQL queries; they just pull all the titles that have the same Collection Tag. Dynamic collections are more complicated since they're built on demand, it has to look up multiple columns or join multiple tables together, depending on what filters you used (example filters: Labels, Actors, Date Added, Language, and 25 other filters). So you would think it would be the Dynamic collections that would have this loading problem, but it's the opposite.
Recently, someone found out that this problem has a connection to the config setting: Database Cache Size. Basically, if you set it to the default 40MB, the title page will load. But if you set it too high, the title won't load.
One of the only "solutions" is to simply convert your collections to dynamic collections and to delete all static collections. This includes deleting all the automatic "franchise" collections that Plex built, like the Marvel Universe, Saw, LOTR, etc., since those are all static collections. Another solution is to use an older version of the Plex mobile app...
So it would be great if they finally figured this out and fixed it.
There have been a few smattering complaints and threads about this issue for a year, but this is the only one that has gotten any traction and attention: https://forums.plex.tv/t/android-plex-doesnt-load-movies-if-in-a-collection/922582