I have the CV1 and the flashing was horrible to the point I didn’t want to play MSFS 2020, I am not on the Beta version in Oculus however yesterday I updated my Nvidia drivers before I did my FS Academy flight to record and upload to Youtube, the flashing became almost none existent after the update, I had a couple random when loading in and maybe two during the flight. I have not checked it playing with other aircraft so I can’t speak on that but it worked fine in the 152 with FS academy. The new version number is 465.89, I only updated the graphic driver on a clean install I unchecked the others such as Audio etc. Give it a go and see if that helps if you have an Nvidia card