Convert world space to widget location for VR Oculus Rift

Hi, i am able to use this function successfully in an fps mode without in VR mode,
however i just cant seem to make it work properly in VR.

My intention is to draw a line in widget (added in viewport) in which the beginning and end points of the lines are world space locations that are projected onto the widget.

The lines appear in VR but they do not correspond to their respective locations correctly. I also tried using stereo layer by following (Mitch’s VR Lab Ep11 - UE4 - Stereo Layers for UI, Mitch's VR Lab Ep11 - UE4 - Stereo Layers for UI - YouTube)

Please help. Thank you.