Falling out of window onto the desktop. Why?

In the full screen mode, I selected few photos to move to the very front. Dragged them to the far left edge only to see my screen role to the left with the files in the select mode as if I want to add them to the desk top. Basically, the full screen of the app will roll off to the right and youll be holding on to the photos you selected and the desktop space wondering what just happend. Also, the drag and drop does not work properly either. It just spreads the photos out randomly. This tool is full of bugs. I really want my refund!

dj KO about shootShifter