AH !

The issue was that I had a special search mode that I had remembered for future searches.  MAIN was not checked :(
I've resolved that now :)

I hope that the main search in the top right corner does not use special search or my search preferences....until I click on the "containing..." at the bottom of the dropdown list ?  or does that search input box always use my preferences (currently MAIN and PROPERTY) ?
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Thanks
Lydia