Sounds like you have 'Set Angle' set to "No."
Click on the sprite and look at the tab to left. Look for the 'Set Angle' feat below.
Set angle is convenient if the character moves without the presence of the force of gravity and vision from above. In my case, the vision is like that of the ancient Egyptians (right and left) and there is the force of gravity. A little 'how to play Super Mario but with the mouse instead of using the arrows and without the ability to jump.