"Ghost" epubs on Books 3.1(2183) Big Sur won't delete
I added three (3) .epub files that do not contain DRM to my MacBook's books app. I did so by using the method "File -> Add to Library". Once they were imported, I deleted the local files since they are now stored in iCloud. The issue is I can not open, edit, delete, find, or view them at all. They are frozen/stuck on this list of books in the library.
Any attempt to change the name or category is instantly reverted. Double clicking on them does nothing. Right clicking and selecting "Delete" makes them disappear and instantly reappear. They do not appear on my iPhones book library, only on the MacBook. I own the MacBook, iPhone, and Watch with no other products. I feel as though this is an error/bug caused by importing and syncing when the original file doesn't exist anymore.
I am simply trying to remove them from the Book's list. Please advise, thanks!