I notice that it will see some jittering distortion when turn around while old version, it is only be distortion (geometry distortion).
Or it will see the distortion at the center like a some distortion plane is in front of you, because it look the image is split to be 3 parts by some vertical distortion band.
I test by friut ninja (found in steam home too), but ever notice since the pimax home (big planet). Remember that some member said that he can see 4 section images for a period when start the headset.
I tick parallel projections, will tick out and try again.