Server Version#: 1.43.1.10611
Player Version#: 4.159.0
The server is unable to identify two different shows with the same name and merges it under one show.
After renaming, Plex Dance both shows, returning them one at a time to the library (make sure the first is correctly imported before proceeding with the second).
I have tried the below:
/tv/ghosts/2019/season 1/xxx.mp4
/tv/ghosts/ghosts 2019/season 1/xxx.mp4
/tv/ghosts/ghosts (2019)/season 1/xxx.mp4
/tv/ghosts/2021/season 1/xxx.mp4
/tv/ghosts/ghosts 2021/season 1/xxx.mp4
/tv/ghosts/ghosts (2021)/season 1/xxx.mp4
I believe because both of these, although same show but US/UK version, it groups them under the same show. Previous version, and Windows version doesn’t have the same issue. This is only the case when using it on Linux.
you were lucky it worked on Windows, maybe just because it was an older version. Plex has always wanted the shows directly under the tv folder, not subfolders