Most recognition problems come down to file permissions or naming and organization. There can be other causes as well, such as database corruption, a bug in the scanners/agents, or something else.
I asked for the naming and organization to try to replicate your setup. A one-off problem is hard to track down. If a problem can be replicated then it can be fixed.
Next step would be to provide a set of server log files that capture the problem.
Please gather the log files with minimal other activity occurring on the Plex server - no streaming, no scanning in other media, etc. The log files have a fixed size. If there is a lot of other activity, the desired information may end up being rolled out of the log files into the bit bucket.
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Ensure the Plex server is configured for debug level logs.
Settings → Server_Name → General + Show Advanced
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Restart Plex Media Server and wait 2 - 3 minutes for the server to fully start and the logs to capture the startup sequence.
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Plex Dance one of the problematic TV shows.
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After Plex has finished scanning, etc., wait two minutes.
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Pull the log files via Settings → Troubleshooting, and add the ZIP file to this thread.
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In addition, please provide the naming and organization of the show you Plex Danced, as it will make it easier to search the log files for problems.
