Murderbo Books Won't Download to Kobo

I tried to read Murderbot #6 on my Kobo on a Mac, and it didn't work. I downloaded through Libby, opened the files in Adobe Digital Editions, moved them to my Kobo, and the Kobo just keeps saying I don't have authorization.

I deleted my authorization on the Kobo and reauthorized.

I downloaded a fresh copy of the file.

I reset my authorization to my new email address.

None of it worked, so I'm reading it on my phone. The moral of the story is, drop the DRM already. It's *not helping*. Just let us download files. I swear, your building won't burn down, and the eeeevil communists won't take cover.