Audible Books missing after updating to macOS Sequoia

13 in ch MacBook Pro M2, sequoia 15.0.1.

My library is gone in Books. I cannot import a previous downloaded audible book from audible. Nothing happens. So I can't rebuild the library that way. I can download or listen to the books using the audible application on the Mac, so it (the Mac) is authorized. The only way I can think of to get them on to my iPhone is to use the audible app there too. So do I just trash the books app and use audible's?

Any ideas?

[Re-Titled by Moderator]