I was on QBO chat for 2.5 hours and tried the incognito thing with the Edge browser (I use Chrome) and there was no difference. And I just did it myself (with Ctrl-Shift-N) and there was no difference. The pulldown list behavior didn't change. It was still broken.

I know how to set up rules and I have quite a few which work just fine. The problem of bad pulldown lists is orthogonal to rules. Whatever the rule sets the category to is irrelevant; the pulldown list should allow me to modify it.