Update metadata in library after import with -A

As title. I imported my large music library which has a lot of messed up tags using the -A option to another directory (because I don’t want to mess up my current library).

Now, I want to update the library using autotagging. But running import again on the actual library folder, or just one subfolder with a few tracks in it, hangs with no output. I guess that’s because it’s already technically “imported?”

Is there a way I can run autotagging on subsections of this imported library, or do I have to restart without the -A option? If so, how can I clean up what I’ve done so far?