Resolve “The operation cannot be performed because the message has been changed”
The problem is a new bug in the recent Office update, and no amount of restarting, reinstalling, or repairing will fix it, so don’t waste your time pursuing those options.
The only workaround is to
First, Copy your message
Next, Delete the draft
https://qr.ae/prJ1E7
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)