Has anyone expierenced their iPhone X screen flashing or blinking off and on. It doesnt happen all the time, hasnt happened in about 8 hours now. The screen cuts out in 1-2 second intervals. I am a beta tester and am on 11.4 version 15F5037c. Im guessing this is a software issue??? Any help would be appreciated. If there is another place I should post let me know.