DLNA doesn't show files in default folders

Hi all, I'm having issues with DLNA on a brand new Win 11 PC. Any DLNA client does not see files within the default videos or pictures folders, but it does see any subfolders I create in there (e.g. C:\\Users\\username\\Videos\\subfolder). I have tried everything I can think of. I have gone through the legacy windows media player and set the right folders as best I can to try solve this, as well as any folder properties that may be preventing it from being shared or visible (WMP sees the files just fine).

The more perplexing thing is that if I add another folder to the video or pictures library (not a subfolder) the client can see all files in that folder. (e.g. E:\\Videos\\subfolder\\file.mp4)

To add even more confusion, the Music library folder can also see files just fine (C:\\Users\\username\\Music\\subfolder\\file.mp3)

Can anyone suggest why this isn't working as intended? I have found no answers online to this issue and it's a new PC with very little installed on it, so I can't think of what may be causing this. I never had this issue on my old Win10 laptop.