Plex Client issue: Unknown metadata type: folder

Plex Players Desktop Players
1

Server Version#: 1.18.1.1973
Player Version#: 1.3.1.916-1cb2c34d

Dear Plex Community

Please help me solve some issue.

Issue:

  1. One managed user can’t access the movies library. Other managed users can.
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    34917×545 107 KB

Context:

  1. I have very little knowledge about the logs of Plex (although I know where to find them I can’t make much sense of them).
  2. Issue 1 only affects any (mac or win) desktop client. Web client is fine. Issue 1 occurs always when selecting a library.(not the recommendations)
  3. I managed to track down an error in the console that is not really helpful to me (but might help someone more experienced)
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    31628×462 18.4 KB
  4. The Unknown metadata type: folder error is always thrown when selecting a library.

Please let me know what logs I can provide to narrow down this error, or even just how to fix whatever server hiccup this is.

Thanks
Daniel

2

You may want to give the 1.4 preview version of the desktop app a try:

1 Like
3

Nice. The issue for the managed user was solved by updating to desktop player version 1.4
The Unknown metadata type: folder error is still thrown in the console.

Thank you for your quick response and the easy fix.

1 Like
4

Not fixed for me on 1.4.1

5

Would just like to kick my two cents in here. I’ve been seeing this error on the latest public PMS version - Mac. I have traced it to my Movies library. I disabled Local Media Assets when I created the library, but apparently not before PMS still chose to grab the local folder assets for some of my media. Because of this, when I scroll the list view of my movies, any time it tries to load a section that used Local Media Assets, it throws that error because I have LMA disabled. I can tell this because those items that were previously matched with Local Media Assets have the filename as the media name, even though it also pulled the rest of the metadata from Plex Movie. I’m having to go through and refresh metadata for each of those items, after which the Unknown Metadata Type: Folder error does not occur when viewing the same list of titles. Not sure why or if this is a bug (Pretty sure I had LMA disabled before I added the library, but it is still trying to use it) - Just thought I’d share in case this helps anyone.

1 Like
6

Still a problem.

7

Hi,

seems it is still a problem . . .I suddenly got it today I wonder if this points to a corrupt database??
cheers
T

8

Any updates on this problem?

Apr 02, 2020 14:05:45.311 [0x7f2ff9805700] ERROR - Unknown metadata type: folder
Apr 02, 2020 14:05:45.356 [0x7f2fb16fb700] ERROR - Unknown metadata type: folder
Apr 02, 2020 14:05:45.379 [0x7f2f03735700] ERROR - Unknown metadata type: folder

9

I setup a brand new plex server and seeing the same thing. Disabling the local metadata and forcing an entire refresh to see if it will fix it for me.

10

Same problem here, in my case it occurs when showing the music library: Here is a dump of plexmediaserver.log

Apr 25, 2020 13:49:29.119 [0x68e7c450] ERROR - Unknown metadata type: folder
Apr 25, 2020 13:49:29.122 [0x68e7c450] DEBUG - Setting container serialization range to [139, 244] (total=-1)
Apr 25, 2020 13:49:29.133 [0x68e7c450] ERROR - SQLITE3:0x1d8, 11, database corruption at line 67757 of [bf8c1b2b7a]
Apr 25, 2020 13:49:29.133 [0x68e7c450] ERROR - SQLITE3:0x1d8, 11, statement aborts at 62: [select distinct metadata_items.id as ‘metadata_items_id’, metadata_items.library_section_id as ‘metadata_items_library_section_id’, metadata_items.parent_id as 'metadata_items_parent_i
Apr 25, 2020 13:49:29.137 [0x68e7c450] ERROR - Soci Exception handled: sqlite3_statement_backend::loadRS: database disk image is malformed

11

That is a wholly different issue.
Go here: https://support.plex.tv/articles/201100678-repair-a-corrupt-database/

12

Same issue for me too.
I managed to get rid of it for some time by going through each of the movie files that were showing with file name as the movie title, removing each file metadata through Windows properties. I also unticked Local Media Assests on all scanners, then analysed all libraries.
This seemed to resolve the issue.
However after several months it has returned and flooding the Server logs.
Hopefully a Plex guru will be able to shed some light on what is causing the issue and resolve it finally.

PMP Version 4.29.2 (2.57.0)
PMS Version 1.19.3.2793

plex-meta|690x629

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image
image740×675 99.4 KB

14

Awaiting update

15

mmmh… it seems that this one is one of strange behaviors/bugs.
added a new video inside my video library folder and a few seconds later, the video is shown in the list as usual.

I added a new album folder inside my music library folder and this one don’t want to appear in my music library. very very strange.

16

Same here, and it’s blocking the library scan apparently.

17

This started on my docker-based Plex recently too. No posters, can’t even manually set now. Anyone have any troubleshooting ideas?

18

Did disabling local metadata fix the problem?

19

According to this post, this error is safe to ignore. It is apparently related to some development work being done.

This thread has been marked as solved for more than six months and the title is not related to the actual problem the user was experiencing (one of their users was unable to access one of their libraries). You may be better served by starting a new thread and describing, in detail, the actual problem you’re experiencing.

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