Flip Page image viewing can cause broken stacking function.

When you pick a stack of pictures and being to leaf through them with 'Flip Page' if you double click on one it becomes a slideshow. (This works.) But, when you leaf through them to a different picture. (A) They stay at thumbnail resolution (I know you can fix this but it is very processor intensive if you keep them at full resolution 100% of the time.) (B) When you double click on a "different" picture as you leaf through the same stack the stack freezes (making it unable to leaf through ever again) and you are unable to close it with the red X button. (C) This also causes all other stacking and grid functions to back fire and slow down, forcing you to close and restart.