Strange category selection

When editing a post, I was given options to (re-)categorize it but only into subcategories of (a few of) the top-level categories, not the top-level categories themselves. I refreshed the page and things went back to normal.

Could you screen shot it the next time you see that happen? I can’t reproduce it here.

I just saw the bug too and refreshing the browser does fix it. I’ll look into it.