I'm not sure how this feature is supposed to work, but it isn't working how I expect it to work.
I also don't understand what "only return 1'th" is for and how it is supposed to work, and why it is checked by default.
Bonus additional bug/confusion: while I'm at it, even if find a window does trigger, "stop processing this event" doesn't work to actually stop the macro... I had to jump to an empty disabled macro. Not sure what stop processing this event is for if it doesn't stop processing