Book Module messed up after update to 2021

[PatriciaGehant]

I created a book in LR CC2020  and keep having pages disappear after hours of work in 2021. I expereienced the loss of pages in the book when doing the following:

Edit photo in Develop

Some how the Library view appears

When I try to type in the Photo description box, but the cursor is not really there. It takes numerous attempts to get the highlight to type.

Very upsetting since I lost 18 of my 28  pages when I was redong page 22. The first 6 pages seem to remain.

Any ideas?

[GoldingD]

Is the problem linked below, from the feedback site, the same? If so add yourself to it

https://feedback.photoshop.com/conversations/lightroom-classic/lightroom-classic-loosing-at-least-22...