Glad things are working.
Pretty sure you ran into this:
There is a problem with the agents sometimes not initializing properly (see this post). It prevents Plex from correctly matching media. The workaround is to restart Plex Media Server.
The current beta was released before that post. I do not know when the next beta will be released, but it should have the fix for the problem.
Here’s a portion of the log files (Plex Media Server.4.log). You can see Plex start to match Frasier, then error out.
Nov 28, 2023 19:39:41.107 [140372648696632] DEBUG - Matching 'Frasier' (ID 128275) with agent tv.plex.agents.series
Nov 28, 2023 19:39:41.109 [140372648696632] DEBUG - Refreshing metadata for 'Frasier' (agent: tv.plex.agents.series)
Nov 28, 2023 19:39:41.109 [140372648696632] DEBUG - MetadataAgentPostProcessor: adding id 128275 to refresh queue (1 items in queue)
....
Nov 28, 2023 19:39:41.114 [140372642368312] ERROR - MetadataAgentPostProcessor: failed to find agent for identifier tv.plex.agents.series
