While I don’t remember if this was previously working on the regular desktop app or not, I notice that the search function in plexamp has stopped showing results matching track artists and only shows album artists now. This worked a week ago. Please fix this. One of my favorite vocalists is just a featured artist in several songs, so the albums are not theirs, so I had to rely on the search feature to find all of those tracks.
(and this addendum I guess would be more of a feature request, but track artist support in general needs to be vastly improved)