Noticed here the last couple of days on xenforo.com. If I search for something like "yoga" from the forum home page, I get "No results found", but if I search for it again on any other page, the correct number of results are displayed. It was easy to reproduce multiple times just a minute ago, now I can't. This was just a basic search from the top right, not the advanced search. But just now, I searched for "yoga" from this thread, and only got this thread as a result. Searched for it again, and got all of the results. Incompetent Operator Error.