Walls Won't work

I have created an actor that I can drag around the screen by following the players touch. I have added walls to the edges of the screen, all of the way around, as I don't want the actor to go off screen, however, if I drag off screen then the player goes with it???
I have the right collision rules in place it just seems to ignore them! Anyone got any clues??
I have the right collision rules in place it just seems to ignore them! Anyone got any clues??
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