If a show was scheduled to record, but then has an issue, then it will show with an “!” icon in the DVR schedule. As far as I know the only way to see why an episode isn’t scheduled to record is to look at debug level logs in the “Plex Media Server.log” series. (Note that when you export the log zip from the Plex web GUI that Plex keeps rolling logs so you have some history. For example, “Plex Media Server.1.log”, “Plex Media Server.2.log”.
As an example, I set a recording for only new airings of “I Can See Your Voice” and then immediate exported my logs. There is a lot of information in the logs, but here is where it made the decision for which episodes to record based on which were reruns versus new:
Mar 07, 2022 05:48:02.104 [0x7f131caeab38] DEBUG - Subscription: We want a premiere, and 'I Can See Your Voice - E7 - Episode 7: Rachel Platten, Robin Thicke, Raven Symone, Cheryl Hines, Adrienne Houghton' is an old airing, ignoring.
Mar 07, 2022 05:48:02.104 [0x7f131caeab38] DEBUG - Subscription: We want a premiere, and 'I Can See Your Voice - E8 - Episode 8: Shaggy, Margaret Cho, Rachel Harris, Cheryl Hines, Adrienne Houghton' is an old airing, ignoring.
Mar 07, 2022 05:48:02.104 [0x7f131caeab38] DEBUG - Subscription: No match in the library for 'I Can See Your Voice - E10 - Episode 10: Kandi Burruss, Vanessa Lachey, Jim Jefferies, Cheryl Hines, Adrienne Houghton', grabbing.
And then I recreated my recording for Blue Bloods for new and repeat episodes, and then downloaded logs and you can see where it decided not to record some episodes because I already have them. Man, seems like the log entry should have the season number…
Mar 07, 2022 15:19:47.708 [0x7f131b341b38] DEBUG - Subscription: We found a match in the library for 'Blue Bloods - E11 - Disrupted'
Mar 07, 2022 15:19:47.708 [0x7f131b341b38] DEBUG - Subscription: We found a match in the library for 'Blue Bloods - E12 - Milestones'
Mar 07, 2022 15:19:47.708 [0x7f131b341b38] DEBUG - Subscription: We found a match in the library for 'Blue Bloods - E13 - Ripple Effect'
Mar 07, 2022 15:19:47.708 [0x7f131b341b38] DEBUG - Subscription: We found a match in the library for 'Blue Bloods - E14 - My Brothers Keeper'
Mar 07, 2022 15:19:47.708 [0x7f131b341b38] DEBUG - Subscription: We found a match in the library for 'Blue Bloods - E15 - Blues'
Mar 07, 2022 15:19:47.708 [0x7f131b341b38] DEBUG - Subscription: We found a match in the library for 'Blue Bloods - E16 - Past Tense'
Mar 07, 2022 15:19:47.709 [0x7f131b341b38] DEBUG - Subscription: No match in the library for 'Blue Bloods - E11 - Back in the Day', grabbing.
Mar 07, 2022 15:19:47.709 [0x7f131b341b38] DEBUG - Subscription: No match in the library for 'Blue Bloods - E12 - Cursed', grabbing.
Mar 07, 2022 15:19:47.709 [0x7f131b341b38] DEBUG - Subscription: No match in the library for 'Blue Bloods - E13 - Stomping Grounds', grabbing.
I know you can see a guide refresh happen in the logs as well - it usually happens overnight, but it seems like there should be a better way to see when the guide last refreshed…
Let me know if this creates more questions!