I'm adding this here because I discovered it by accident recently:
With a left mouse double-click on a shortcut you can no longer open that shortcut inside the "Change directory" dialog window. You get an error like "XY - The foldername is invalid".
BUT:
If you right click with your mouse on the shortcut and choose "Ordnerpfad öffnen" (should be something like "Open folder path" in the english version), you get directly to your target folder, still inside the dialog window of Mp3tag.
Thank you so much for reaching out LyricsLover!
When I tried it I also discovered just clicking the ‘open’ option once clicked with the right mouse immediately opens the corresponding/short cut folder.