Hello,
just moved my PST from old PC (Windows 10 / Outlook 2019) to new PC (Windows 11 / Outlook 2021). My search (to find emails with keywords) is not more working. No issue on Old PC.
What I have tried :
Rebuilding index
Scan and fix errors in PST using scanpst
Verified that in File Types “Index Properties’ .msg is selected. Even tried with option “Index Properties and File Contents”