Invalid Argument error in Publish

Just started using RM9. I converted my RM8 files without issue. However, when I try to use the “Publish” feature, I immediately get an ‘Invalid Argument’ error after filling out the fields in the “Create a new book” window. I tried various family lines, all result in the same error. I also have repeatedly closed RM and restarted my computer, also repeatedly closed RM and shut down my computer.
I am using a MacBook Pro (early 2015) running OS Monterey 12.6.6.

Open a support ticket with a copy of your file and steps to recreate it.