I type 'bl' as my search target. A screen of hits appears. About 300ms later it closes. I click the Everything icon in my tray and the program reappears, with an empty search field. 'bl' again causes same result. So does 'bm'. And 'bh', and 'bi'... But not 'bn' or 'bo' or bq' ...
Baffled, but thinking that it may be due to certain files being included in the hits I snatched this PrintScreen of 'bl' results before they vanished:
Does that offer any clue? Otherwise I'm baffled how to isolate and fix.
But I'd never have found it myself. How could the crashing have arisen? Why that particular selection of characters (and presumably more)? Is there anything else I should do to prevent it happening again?