Great puzzle with a serious mistake

Negative: If one has created with the peripheral parts quasi "the framework" of the puzzles, this framework is not fixed. If you come by accident on this framework, only the frame will move at best (and must be realigned). In the worst case (with me so often that I do not feel like), the complete "framework" turns.

For me it is thus unfortunately unusable because instead of relaxation frustration arises.

(Should anyone know a "trick" to fix the frame (in the help I have found nothing) or it can be repaired by an update, I'll be happy then 5 stars.