Set Actor Height From Ground

Hey mates. I have been trying to get a nice collision for a character for prone, and I simply used Set Relative Actor Rotation to rotate the character 90 degrees which seemed OK to me. But the thing is the capsule simply hovers above ground. I used Set Actor Relative/World Rotation nodes to get it to ground but to no effect. It simply refuses to come down.
Any ideas ?
P.S: Please ignore the upside down character. It is expected :wink: