VIdeo Library Thumbnails Not Correct

[Jrod696 28]

I have 2 Video Libraries and up until recently, I would say the patch the thumbnails it posted respected the videos that were in that library, I know that you can go to the library edit the images delete the image and rescan to update the posters if you don't want to wait for the scan and have done that in the past and it worked just fine.

The issue is 1 library has a ton of videos in it and the other might have a dozen or so but the library with a dozen is pulling the poster images from the other library that has nothing to do with it.

Also both libraries are Movie type libraries the mixed libraries and series libraries seem to be happy and not crossing over.

Big picture its not a major issue really just cosmetic but something I figured I would point out

[GrimReaper 4739]

Personally, I've never seen library thumb pulling images from folders of another library - do you have overlapping paths? What library folders have you added to each of those libraries? 

[Jrod696 28]

1 minute ago, GrimReaper said:

Personally, I've never seen library thumb pulling images from folders of another library - do you have overlapping paths? What library folders have you added to each of those libraries? 

That was my thought too but I double checked and the paths are distinct, and all the settings are unique, the libraries themselves are functioning correctly showing what they are supposed to with no crossover as far as the content goes, its feels like whatever Emby is using to create the thumbnail it's almost like its lumping the Movies type library into a single category to pull the posters to create the thumbnail and not looking at the context of the library itself.

[GrimReaper 4739]

51 minutes ago, Jrod696 said:

its feels like whatever Emby is using to create the thumbnail it's almost like its lumping the Movies type library into a single category to pull the posters to create the thumbnail and not looking at the context of the library itself.

No, that's not how it (usually) works - nor is supposed to. Did the library with incorrect collage ever contained those items in the past? 

[Jrod696 28]

5 hours ago, GrimReaper said:

No, that's not how it (usually) works - nor is supposed to. Did the library with incorrect collage ever contained those items in the past? 

yes I would say at some point those those movies would have been in that folder and then got moved out to the other folder but it would have been quite a while a go, the flow basically they go to one folder as new and then after a certain amount of time they get moved to a different folder/location or deleted

basically its a simple way to let the.... older generation..... find the new stuff for a while

Edited December 24, 2025 by Jrod696

[Jrod696 28]

Not sure what voodoo is going on but I had been looking at this off and on for weeks now checking settings looking at different things and this morning the fold collage matched the media inside it. I did not do anything at all so I have no insight as to how it got fixed but it is?? 

Never fails, I decide to make a bug report and its normal, my luck it will revert at some point and I will come back to say its not cooperating again and poof its correct again. 

 

Edited December 24, 2025 by Jrod696

[Luke 42077]

Thanks for following up

[Jrod696 28]

Ok I cannot explain it but looking at Emby today the collage went back to the old images that are not in that folder it all, it was a very brief window they were correct. The interesting thing is I changed nothing, did not add modify or change anything in that older.

I just went directly to the library settings in the dashboard went to that library, went to edit images, deleted the image, it wiped the collage and just gave the default movie clapper, I did a scan on the library and it rebuilt the collage with the same exact wrong image that were there when I deleted the image from the edit images.

 

 

 

Edited December 25, 2025 by Jrod696

[Luke 42077]

OK there is an issue with that in the current release. We’ll have a maintenance release out soon that will resolve it. Thanks.

[flibberflops 1]

I can add that i am having a similar issue.

In Movies and TV Shows, all the images are correct.

However, the images shown for movies and TV shows in the "My media" have resorted back to stuff that was deleted months ok

I have double checked the relevant media folders and there is no trace of the old stuff.

I manually deleted the relevant "my media" images and emby has recreated the images of the old deleted stuff again

[Luke 42077]

23 hours ago, flibberflops said:

I can add that i am having a similar issue.

In Movies and TV Shows, all the images are correct.

However, the images shown for movies and TV shows in the "My media" have resorted back to stuff that was deleted months ok

I have double checked the relevant media folders and there is no trace of the old stuff.

I manually deleted the relevant "my media" images and emby has recreated the images of the old deleted stuff again

Hi, yes with the holiday over we are about to release an update to resolve this. Thanks.

[Jrod696 28]

I just ran the update and was hoping the library fix was in there, but it did not change after deleting the image and re-scanning the library, then I checked the change log and it looks like it did not make it in the 4.9.3.0 release?

Edited January 9 by Jrod696

[Luke 42077]

2 hours ago, Jrod696 said:

I just ran the update and was hoping the library fix was in there, but it did not change after deleting the image and re-scanning the library, then I checked the change log and it looks like it did not make it in the 4.9.3.0 release?

HI there, can you please provide a specific example?

How to Report a Problem

Thanks !

 

[Jrod696 28]

5 minutes ago, Luke said:

HI there, can you please provide a specific example?

How to Report a Problem

Thanks !

 

I sent you a DM with screenshots of the issue and library settings

[Luke 42077]

Hi there, please attach the Emby server log from when the problem occurred:

How to Report a Problem

Thanks!

 

[Jrod696 28]

Ok, I rolled the log so it was not full of junk and then went to the library and deleted the collage thumb and then did a rescan on the library and it still came up with images not in the library. I actually did this twice, I DM'd you the server log and the new screenshot.

[Luke 42077]

Are you still having an issue with this?

[Jrod696 28]

Yes still having the issue, I just deleted the collage image and did a rescan of the library and got all new images that have nothing to do with what is in the library itself.

I actually have a DVR library used for Live TV recordings and I moved everything out of that folder except for 4 shows and deleted the thumb image and did a rescan and the collage changed but was full of shows no longer in that library.

So I am actually able to replicate on 2 different libraries with 2 different types of media pointing to distinct folders on my NAS

[Luke 42077]

What is the content type of the libraries?

[Jrod696 28]

21 minutes ago, Luke said:

What is the content type of the libraries?

Movies and TV Shows

[flibberflops 1]

I have more to add to this. If perform the following on "TV Shows" (which is one of the ones that is showing the incorrect Thumbs in My media)

Click 3 dots...

Refresh metadata...

Replace all metadata
Replace existing images
Replace existing video preview thumbnails

It fixes the problem and all thumbs are correct again... However, a few hours later it reverts back to the incorrect thumbnails of stuff that was deleted months ago??? Emby isn't even being used when it reverts back to the incorrect thumbnails. Its almost as if there is a cache somewhere of stuff I had on a specific date some months back that it keeps defaulting the thumbs back to. It is very weird indeed.

Is there something specific i can search for in the log that denotes the thumbs being updated so i can post more granular info? 

[Jrod696 28]

1 minute ago, flibberflops said:

I have more to add to this. If perform the following on "TV Shows" (which is one of the ones that is showing the incorrect Thumbs in My media)

Click 3 dots...

Refresh metadata...

Replace all metadata
Replace existing images
Replace existing video preview thumbnails

It fixes the problem and all thumbs are correct again... However, a few hours later it reverts back to the incorrect thumbnails of stuff that was deleted months ago??? Emby isn't even being used when it reverts back to the incorrect thumbnails. Its almost as if there is a cache somewhere of stuff I had on a specific date some months back that it keeps defaulting the thumbs back to. It is very weird indeed.

Is there something specific i can search for in the log that denotes the thumbs being updated so i can post more granular info? 

Can you try going to the library section and on your TV Shows hit the 3 dots and choose edit images when that comes up delete the thumb, then hit ok and then just do a simple scan library files, it will rebuild the collage thumb, does it use the old deleted images?

[flibberflops 1]

When I do that the rescan brings back the wrong old thumbs... bizarrely a different set of wrong old thumbs to the wrong thumbs I had before (if that makes sense) 

[Jrod696 28]

12 minutes ago, flibberflops said:

When I do that the rescan brings back the wrong old thumbs... bizarrely a different set of wrong old thumbs to the wrong thumbs I had before (if that makes sense) 

it actually does make sense I experience the same thing, like some of the images are from what was there before but some are different but all around none of the images are in the library at all

[Luke 42077]

On 1/23/2026 at 4:49 PM, flibberflops said:

I have more to add to this. If perform the following on "TV Shows" (which is one of the ones that is showing the incorrect Thumbs in My media)

Click 3 dots...

Refresh metadata...

Replace all metadata
Replace existing images
Replace existing video preview thumbnails

It fixes the problem and all thumbs are correct again... However, a few hours later it reverts back to the incorrect thumbnails of stuff that was deleted months ago??? Emby isn't even being used when it reverts back to the incorrect thumbnails. Its almost as if there is a cache somewhere of stuff I had on a specific date some months back that it keeps defaulting the thumbs back to. It is very weird indeed.

Is there something specific i can search for in the log that denotes the thumbs being updated so i can post more granular info? 

@flibberflops can you please show us an example? Thanks !