Since downloading 24.2.5.2, my desktop and taskbar shortcuts quit and now my book manuscript's page numbers are all screwed up

Since I downloaded version 24.2.5.2 a few days ago, my desktop and taskbar shortcuts quit working and I had to download it again. Since doing that, the page numbers of my book manuscript are all screwed up. I’ve written something like 190 pages, but the page numbering and count displayed are in consecutive sets of 1-15. WTF!?!?!?! I’ve never had this happen before in 20+ years of using this excellent software.

And what operating system are you using and what file format are you saving in?
Please upload a sample file with the problem here so that someone can look at it and examine. Thank you.