I can see that the Episode number is out by 2. Tuesday 3rd December shows as S21 E47 when it should be S21 E49 - I am not sure what episode number it ends up with after recording and matching with thetvdb. You can check the media info in Plex Web
If the episode number gets corrected after recording then the next episode which would have an episode number than is 2 less than what It should be, will not record if there is one such episode number in the library
This is theory. One would need logs during time when to record / file details of previous recordings / metadata details of what is in the library
