Hmm, I haven't had that bug come up before. The only major thing I'm trying to find a solution for is that you need to make sure the Desktop Buddy App is the active windows application(by clicking on it in your task bar) so that the quick menu will appear.
Another issue which has been fixed(will be in the next build) is that the Avatar Position tool(the circle with the arrows) was on the same layer as the quick menu buttons, so if you have the Avatar Position Tool in the same screen space as the Quick Menu then the Position tool takes precedence and closes the Quick Menu, blocking your access to the buttons.
Feel free to message me with more info if your bug keeps occurring and I will see what might be the cause.
I'm glad you are enjoying the app regardless of the bugs :)