Latest update shows:
When I open MP3tag, ADMPlugin.apl appears in the tag window. Also, right-clicking on my CD folder would show the tag in the window, but it no longer shows.
Isn't that an Adobe plugin?
I would ask Adobe what has happened to it.
Could you please provide a screenshot of this situation?
If you don't want *.apl files to be listed by Mp3tag, please remove the file extension from File → Options → Files → Restrict incoming files to.
APL in the context of Mp3tag are APE link files, an format that was (maybe still is?) semi-popular for people who use Monkey's Audio.