I just started using Mp3Tag recently, and I’ve encountered a minor issue that is very annoying.
When I select a song to tag from Discogs, and the disc has multiple tracks, it always sets the track name of the first track of the disc instead of the selected one.
I’ve attached a screen recording to make it easier to understand.
In the Tag Sources result window, you need to arrange the single file in the list that shows the selected files (bottom right, above the window buttons) to match the entry in the track title list.
You can use drag and drop for that or move the selected file via ⌘↓ to move selected files down and ⌘↑ to move selected files up.