As of the latest Rift S update, I am now getting flashes/spikes both visual and audio at the rate of one per three seconds continuously in all aircraft, day and night. The day before, I would get a flash about once per 5 minutes. The sim has become unusable until Oculus addresses this issue.
SOLUTION - Opt of the beta. Not sure if this is necessary or not, but I uninstalled and re-installed Oculus. It worked. No more flashing. I think my frame rates have improved a bit, also. The beta was for the black stenciling, and that too is now gone.
Ok same for me, awful frequent flash like if head position shift during one frame and return to correct position the frame after. it happened before but it was way less frequent like once every 4 or 5 minutes. Now it happen from the new Oculus beta update v26 and it's several times per minutes. I'll try to opt out as it fixed for other ones.
I hope this beta will not go public release with such huge bug and Oculus and MSFS Devs will work together to resolve it!
Edit : just to be complete I'm on latest NVidia drivers today, 461.40, and had ASW OFF locked 45fps (CTRL+2), with lot of headroom (gpu usage less than 80%). Problem occurs even far more often if I hit CTRL+1 (no ASW no lock) and fps raise to around 60.
“Dreams feel real while we are in them, it's only when we wake up that we realize something was strange.” - Dom Cobb
"Be careful, if you are killed in real life you die in VR too." - TD_4242