The video below shows the problem I have
The nodes and world position works normally until a certain point on the screen whereby the Deproject node changes my Player Camera positioning for some strange reason. Below is the blueprint screenshot
I have no clue why this happens. Appreciate if anyone can enlighten me
Perhaps the camera is interacting with the block causing the jitter?
Get the block collision and in the collision settings try setting it to ignore the camera and see it the problem is fixed. (trace responses => camera => set to ignore)
If you are using a spring arm for your camera, you could also try adjusting it’s probe size (probably reducing it)
Thanks for the tip! The problem was fixed when I un-tick the Spring Arm Camera Collision ‘Do Collision Test’ , then it stop the jitters already. Thanks again, much appreciated 
