2D sprite arrow follow touch not working

Hey guys, im currently working on a 2d game which you are supposed to shoot a balloon, and theres an arrow supposed to follow the cursor, from two points.
The force has an start and end location, and the arrow is supposed to follow the path of the balloon. Now i tried different methods but i apparently cant make it working. It just stops at 90 degrees, and when i try to rotate the object myself in the bp editor, it cant go more than 90 and 90-.

heres the force system and the methods i tried:

123267-screenshot_2.png

sorry i meant this:

You hit the screen, the arrow points thowards it, but when you move the finger, is supposed to change the course where the balloon would go.