MAJOR BUG in 6.6.1 version – Listing categories cannot be selected.

Once again erased the website (the one that had 3 empty sections for subs), installed 6.6.1. On a second website updated from 6.6.0 to 6.6.1

First website – still has the old design (all categories and subs show up in the same window). But it works properly, parent categories can be disabled. Just doesn’t look like the latest demo.

Second website – looks like the latest demo. Parent categories load in one window, subs load in window below. BUT IT DOESN’T WORK! Parent categories CANNOT be disabled. Even more, if you select a sub category, then the parent category will be selected as well.

Same version of software, works completely different on different sites.