That number indicates Plex has merged multiple files as 1 item in your library. This can happen with bad file names.
Plex considers those different “versions” of the same movie (or episode).
It appears your Android client is picking up a different file that happens not to be that actual movie.
When you click Edit for one of those movies, the Info tab will show the paths/files associated with this particular movie item.
Short Term / one-off solution
- Open the context menu (
...) of that item in your library and selectSplit - Manually correct the matching for all the resulting items
Long Term / sustainable solution
- Identify the files badly matched / merged in those movies
- Fix their naming (folder structure, file names) to match the naming schema described by Plex
https://support.plex.tv/articles/naming-and-organizing-your-movie-media-files/
https://support.plex.tv/articles/naming-and-organizing-your-tv-show-files/ - Subsequently re-scan the library for Plex to correct those matches in its library (you might need to perform a Plex Dance for Plex to recognize it needs to newly match the files instead of re-associating them to the bad matches)
