It used to be that when you touch a tile it moves to the word you are creating. That no longer happens! AND when I move a tile to a square it snaps back to bottom and will not stay in the square I moved it to!!! This only happens on my iphone, not on my laptop.

Help! When I play the game on my iPhone, most of the time the letters do NOT stay in the squares I move them to! They snap back to the bottom. I have to play on the computer instead. Does anyone else have this problem? Is there a fix?