Strange behaviour on startup

Hi,

With my VR project on the Vive.

https://playcanvas.com/project/405441/overview/htc-vive-iron-man-test

I have noticed that the first time I try to run it and go into VR mode it is very jittery to the point of non playable.

Then if I close it and launch it again it is a smooth as butter.

Then if I close it and launch it again it doesn’t display at all in the HMD although I can hear the sound.

Anyone else having having similar issues?