What is this weird camera jittering?

I was trying out some things in UE4 when I ran in to this issue. I really can’t understand how this is happening, can somebody explain?

What is happening:
Walking forwards: Nothing weird
Walking backwards: screen jitters to the left
Walking left: screen jitters to the left
Walking right: screen jitters to the right

Video:

I think it’s something to do with only taking the Z and only the control rotation. What are you trying to achieve?

Could be your character has “Orient Rotation To Movement” turned on or “Use Controller Desired Rotation” turned on.

THANK YOU SOME MUCH! the Orient Rotation to Movement was indeed the problem!