Okay I’m assuming your rocket is going straight up and your camera is side view. Your rocket currently goes up , and movement works it’s just that the rocket facing direction does not follow the direction?
If that’s the case try this solution :
( provided if you’re using CharMovementComponent and that you’re using controller to manipulate the pawn )
In the characters’ settings ( not sure if it’s movement component or the char itself ), there is 3 checkbox that says "Use Controller Yaw/Pitch/Roll . I believe by default ,2 of it is checked. If your rotation is actually ‘rolling’ the char , you might need to check the roll and uncheck the other.
Another way is to Pawn and add a ProjectileMovementComponent . Set starting velocity , and check the “rotation follows velocity” , then move away. it should now face the direction it is moving.