I call it a buglet because it was easy enough to fix. Didn't even havta try & write any code.

The behaviour was that (in my layout) if three modules were stacked in the right-most column, if I clicked on the topmost modules title to expand it, and then clicked on the middle module's title; instead of the middle module toggling (collapsed>open or open>collapsed), the TOP module would toggle! With apologies to the Great North - "Eh? Take off, hoser."

Some inspiration or guardian angel or whatever told me to go to Configure Layout Options & have bitweaver Adjust Module Positions (default by 5); et voila! no more buglet.