Using the included orgmode 9.52 on emacs 28.1 for much of my daily work, university professor. At the end of the day I quit emacs, saving all my work for the day in a very large folder tree that includes all my working files and this is rsync'ed onto a usb disk that is a backup and is sync'ed to a disk on my home computer and I have redundant backups. About one month ago upgraded to orgmode 9.6 using elpa and about a week ago I started getting an encoding warning when i would tell emacs I wanted to quit. The warning indicated the offending characters but they were in an unformatted buffer on the screen and I became fatigued trying to correct them. If I save the file as raw-text I preserve all the org formatting and structure. I upgraded ny home computer to 9.6 and this started happening on it also. I have returned my current computers to the included org 9.52 and the problem has stopped. Can anyone report a similar issue, a cause and a solution.
Thank you
Paul H. Schlesinger MD, PhD
Washington University School of Medicine
Don't let your models of reality become confused with reality itself.