Why do some newly added tv shows get "stuck" in the Recently Added List?

SPECS:
Before I start, let me tell you I have a very large TV show Library. It is 9tb (650 individual TV shows with full seasons) but very organized. All files are the same type, and follow the recommendations for PLEX file naming. The PMS is a Proliant ml350e Gen8 hardware with server 2012 R2 OS. It has one xeon E3-1230 & 16GB of RAM. The libraries are stored on three WD60EZRX hard drives in RAID 0.

ISSUE:
When I create my TV show library, certain shows get “stuck” on the “recently added list” on the plex server homepage. When I add newer shows, they don’t replace the “stuck” ones as they should. I have found that the only way to remove the “stuck” shows from the “recently added list”, is to completely delete them from the library all together. Then when other shows appear in the “recently added list” as they should, I manually add each show back to the library one at a time.

The good news is, I don’t have to create a TV show library all that often, but I would like to understand why this happens every time and on no specific show. meaning the shows that get “stuck” vary.

thanks for your time.

If you are adding mediat to your library in the course of creating the library, Plex will use the file date as the ‘Added at’ date.
Check the file dates of the affected shows. They might be ‘in the future’.

Are you talking about the file creation date for the individual shows file? Would you mind elaborating a bit?

Here is an example: Family Guy_s01e01.mp4 file creation date is March 14th 2015. Why would this file get stuck in the “recently Added list” in front of a show that I added afterwards like ‘Mr.Robot_s02e08.mp4’ which would have a newer file creation date of 8/24/16?

If what you say is truly the case, then what action would you take to remediate the problem? change the file creation date on each file?

thanks,

@threedo said:
Are you talking about the file creation date for the individual shows file?

Exactly these. It is assumed, when you create a new library and you add media, then it is not useful to set all the ‘Added at’ dates of these items to ‘today’.
Instead it is assumed, that the file date is really the date when the file was created/added to your collection. In this special case the file date is closer to what the user might want.

Here is an example: Family Guy_s01e01.mp4 file creation date is March 14th 2015. Why would this file get stuck in the “recently Added list” in front of a show that I added afterwards like ‘Mr.Robot_s02e08.mp4’ which would have a newer file creation date of 8/24/16?

If it is not the file date, then it might be something else.
Have you checked the realtime clock of your server machine?
Is it still operational and correct? (i.e. is the CMOS battery still charged, so the time is correct even shortly after booting up? [and before a mechanism like NTP can correct the time])
Do you set it sometimes intentionally wrong?

Another thing to look at are embedded metadata. Since your files are mp4, they could contain timestamps.

How is the order of agents under
Settings - Server - Agents - TV Shows - TheTVDB
is ‘Local Media Assets’ at the top? If so, grab it with your mouse and drag it downwards, so it sits below the line ‘TheTVDB’.

side remark: your files are not perfectly named. I’d strongly advise you to stick as closest as possible to the naming guides for tv shows. Software like Filebot makes it easy to do so.
You should replace the underscore between show title and season/episode code with [space hyphen space]
Mr. Robot - s02e08.mp4
and dont’ forget the space before ‘Robot’. The show’s title is written with a space character after the Mr. on TheTVDB, and that is exactly how you should write it too.
(It immensely helps to avoid trouble with mismatches now and even more in the future when your library grows bigger.)

Thanks for all the tips and sorry for the late reply.

I dove into the “problem Television show folders” and found some inconsistencies with the television show file names as you mentioned. After renaming each file, removing the show from the PMS database, and re-adding it, has resolved the problem.

Thanks again.