I Have a problem I am giving you an example

I have an album called "Liberty" and there are two singers in it "Artist A" is main artist. I went to songs section of album and changed the artist of some songs to "Artist B" and closed the page everything was fine.
Now i needed to change some album information I opened the album and changed the album information here arises the problem when i click save all the songs in the album are again saved with "Artist A" and "Artist B" is nowhere found in the songs. Kindly resolve this issue

Regards,