Yes, I am using 13.4. If I'm in Column Layout and click Date Received, and then do a search, it sorts by Date Received. But if I'm in Preview Layout and do a search, it will still sort by size. If I then switch to Column Layout, it still sorts by size, though the little down arrow is on Date Received. It doesn't matter if I select show size or not.
So, now I've toggled back and forth a few times between Column Layout and Preview and it seems to have fixed itself. I'm not sure what changed, since I just clicked on Date Received once in column layout. My guess is that there is some bug buried deep in the program, and that by using Column Layout a few times, it somehow bypassed the bug.
Thanks for your suggestions.