That truly is an interesting question. But sometimes odd things happen. For example, try it now with the old version, work for a while and see if the same thing doesn't actually happen. It's not unlikely that you've changed something else outside of Verve, which actually created the problem.
Tracking down problems is not an easy thing sometimes. The source of a problem might be miles away from where the problem itself happened. We look around where it happened and start to make assumptions, leading us to the strangest places, making the strangest changes and things go down from there. It happens. Try debugging a complex software like Verve, hehehe.
Funny enough, what happens to me quite often is that I run into a bug and try to solve it everywhere, hahahaha, making me find and fix little issues I hadn't even noticed earlier. Only to find out eventually, that non of those issues had anything to do with the bug, when I finally have tracked down the real source. Then I not only have that bug fixed, but have all kinds of little improvements and fixes. Wonderful!
Anyway...thanks for letting me know and don't worry about it anymore. However, it's a good experience to learn from, nothing is wasted!