Plex says a TV episode is "Unavailable" when it is available and working fine

Plex Media Server
1

Server Version#: 1.42.2.10156-f737b826c
Player Version#: Version 4.147.1
<If providing server logs please do NOT turn on verbose logging, only debug logging should be enabled>

2

I’m on a Mac and have followed all the standard instructions. Plex has full disk access permissions. The file has played in the past with no issues. I can go directly to the file on my external HD and play it with no problems (using VLC). Plex is fully updated. I’ve tried restarting everything. I’m completely baffled.

3

I recall seeing something like that when I replaced a file with a different file for the same movie/episode and rescanned. Does the problem go away if you do Empty Trash on that library?