Blank pages in photo book uploaded to Blurb

A few days ago I created 2 photo books using the Book module in Lightroom Classic CC 8.2. When I reviewed my order today on the Blurb site, I noticed many pages were blank in one of the books (more than the whole second half). Unfortunately, I had already ordered them without fully initially reviewing every page on the preview screens. I had never experienced any issues before when creating photo books with the Blurb Book Module so I was less than thorough when initially reviewing. These books were for a memorial service and I was trying to make sure I placed the order in time to receive them for the service. To Blurb's credit, they offered me a coupon code to cover the order costs + shipping when I contacted their support channel.

UPDATE: I just uploaded a different book. The first time, I had the same issue (many blank pages) and when I tried it again, the book appears fine. UGH.

Adobe, please fix this now. I appreciate the convenience of using Lightroom to create photo books but if it doesn't behave consistently and accurately, you're eroding my trust in your products.