Hi Charles,
I am Sumit, an Independent Advisor and a 3 year Windows Insider MVP here to help.
It was a known issue yesterday. Have to restarted Windows Explorer process and SearchUI?
https://www.tenforums.com/tutorials/5970-restar...https://docs.microsoft.com/en-us/windows/releas...Resolved: Windows Search shows blank box
We are aware of a temporary server-side issue causing Windows search to show a blank box. This issue has been resolved for most users and in some cases, you might need to restart your device. We are working diligently to fully resolve the issue and will provide an update once resolved.
This issue was resolved at 12:00 PM PST. If you are still experiencing issues, please restart your device. In rare cases, you may need to manually end the SearchUI.exe or SearchApp.exe process via Task Manager. (To locate these processes, select CTRL + Shift + Esc then select the Details tab.)
Content on the above blog is written by a Microsoft MVP so it is safe. However, do watch out for the ads.