Hey (:
Controller rotation won’t turn the character as far as i know. You are only turning the controller. For example if you turn him 90° clockwise, your forward action will move him sideways. At least that’s what i learned when creating my Legend of Zelda movement.
If you want the actual character to turn, you need to set it’s World Rotation.
Could you show me how you setup the Rotation change? Can you also check that your “New Rotation” isn’t your old one due to a calculation error?
If you post a picture of your blueprints, please include more than just 1 1/2 node x) I can’t see anything on this screen.