I have had many issues updating one of my vendors PGP Public Key. I have tried everything, exporting ASC files, editing, and resaving. Trying to update in KeyRing Manager. I have tried everything, and cannot get it to work. any help woudl be appreciated. Screenshots are here http://postimg.org/image/xy9urzzi5/
What about deleting the key first, then adding it again?
Are you sure you're trying to import the new key?