Greetings!
I appoligise but I am unsure how to reproduce. Every now and again the main view/panel (where you edit the skeleton) will become almost unresponsive. The first most noticeable thing that happens is the scroll wheel will scroll the left-right on the tree menu, even if I click an item on the screen. Another thing that happens is that the white perimeter of the images doesn't show until you single click the image.
The issue resolves it self if you close the tree view.
I swear down that I clicked the bugs forum! :@
