I select the files I want to save/or album, select “Keep Original Cover Art” in the Cover Art section, and then SAVE files/tags…

Doing this causes my Artist images that are tagged with the Artist Tag, to be DELETED from the MP3s.

I haven't tested if this occurs when using the "found" images by Picard, nor if it occurs on the lower "official release".  I'm currently using the Beta.

One of my last projects is adding Artist pictures to my MP3s, and I needed to go back to update some of my files with Picard that had Artist images in them, and discovered this bug when I saved the files after editing/updating the tags/files.

Forum: https://community.metabrainz.org/t/bug-priority-other-artwork-in-mp3-is-deleted-on-save/556777