So whenever I make a change to a folder on my computer, the song shows up red, i.e. I want to move my tracks in a folder to a different one. I don’t know of a way to relocate the track either. I lose my grid analysis I manually perfected, and hot cues. Removing these tracks is also a pain since there is no way to sort the missing tracks from the others. I end up just removing my entire collection and restarting.
This is why at this point I do everything from Rekordbox and use the import feature to mimic my structure in Rekordbox (since I play on Pioneer CDJs sometimes as well).