This bug does not happen all the time, it happens usually once out of every maybe 10 - 20 clicks between Groupy tabs.
Essentially, what happens is that, when switching between tabs on Groupy, it will randomly hold onto the tab without me holding the mouse buttons down.
So these are the actions.
1. I switch between tabs on Groupy
2. It holds on to the tab
3. it pulls Groupy tab away from the bar, and even if I'm not clicking anything, ONLY moving the mouse, it will hold onto the window.
4. unless I click again somewhere, it will keep holding on that that specific window that it's bugged out on
5. Major annoyance bug because I constantly have to re-fix it back into the Groupy windows bar, which makes it a major annoyance and dysfunctional bug.