I believe this is a new 4.8 bug. I noticed that if a music video folder only 1 video in there, it displays as a individual file in the music videos Folders view. Have has zero issues with music video folder for years and years so must be a new bug. I deleted and recreated the music videos library, but got the exact same results. For example: Artist folder with multiple videos, shows as a folder in Music video folders: issue: artist with 1 video in their respective folder: