Adobe digital Editions library shows duplicate copies of books AND Kobo can't open them

[ohgodspiderseverywhere]

I rented two ebooks from my library, but when I tried to open them on my Kobo Libra H20, I got an error message about not having DRM authorization to read it. I've tried everything I could think of:

1. Removed the books from Kobo's library and ADE's library.  Checked  authorization for my laptop and Kobo -- all good. Redownloaded the ebook.acsm file, readded to libraries --> no good: same error message on Kobo, and now ADE library shows two copies of each book.
2. Removed the books from all devices (again). Went into the local files to delete the .acsm files. Redownloaded and readded books to the library --> Same error message on Kobo, ADE library shows 4-5 copies of the books.
3. De-authorized laptop and Kobo. Re-authorized laptop and Kobo. Restarted laptop. Re-added .acsm files to ADE/device libraries --> Same error message on Kobo, now saying I need to re-import the book via ADE. ADE shows 3 copies of the books.

So, in the end: I can read these books/their duplicates on Adobe Digital Editions, but not Kobo Libra; and both my laptop and Kobo are authorized with ADE.

I'm at a loss as to what I should do. Please, help!!!