Sometimes YEM's Context Menu does not appear. This means you have to restart YEM.
Also, I have a situation here in Romania, with a friend which called me to see what's happening in his installation, because he cannot import a CPF pack, and also it tells him that the pack already exists, even YEM does not display that CPF pack. So I've entered his PC with AnyDesk software and I've looked in his installation. Some strange information in YEM's index files, as it has not finished installation, and some garbage information has not been deleted. I had to remove manually the garbage folders from installation and to correct index files.
But, Bob, you can use Multi YEM Manager, and try to create an empty instance of YEM and start from scratch with your all packs. If something is wrong, it will be easily correct by selecting needed installation!
Regards,
Vali