Folder Images Reverting

[theguymadmax]

Thanks for sharing those pictures; they really help clarify what you mean. What you've done is create a mixed library called "MIMIR" with subfolders for media. This is the question Dread asked and you said no.

Here’s the structure you've created:
MIMIR (Mixed Movies and Shows Library)
    Media
         TV
         Movies

However, as Dread mentioned, using a mixed library type can be buggy and isn’t the recommended way to organize your media.

It’s better to create separate libraries for each type of content:
TV (Series Library)
    TV

Movies (Movie Library)
    Movies

For your setup you can try placing a folder.jpg image in the TV and Movies folders. Local images take priority and shouldn’t be replaced.