Well, I've got a problem (duh).
I recently moved my data drive letter from E:\ to D:\. I relocated the library in MusicBee, everything gets found, no problem so far.
As you read in the headline, however, I run into two problems:
All song ratings are vanished. This is pretty bad for me because I have auto playlists which need the info and I have to re-rate each single song (currently above 4,232 songs) again.
My next problem: I divide my music in "Purchased" and "Free" (such as free downloads from Soundcloud). The "Purchased" playlist is a playlist folder which contains several playlists which are divided in CDs, digital downloads, Bandcamp, iTunes, albums, singles and so on.
The playlist folder usually shows a merged list of all playlists it contains. After relocating the playlists still exist but the playlist folder is empty.
I just created a new folder and moved my playlists there. But I can't delete the old playlist folder. A message apperas which tells me the select folder doesn't contain files and can't be removed. The folder looks empty and doesn't contain any playlists anymore.