Unknown Composer in Compositions

I don’t know if it had anything to do with the recent builds (207, 208), but when going to Compositions I find over 350 with “Unknown Composer”. I am sure that all the classical downloads and CD or LP rips in my library have the Composer tag populated. What gives? Thanks.

On further examination, the affected compositions seem to be from Tidal (so far) and not my disk library.