D1541981280738, Jan 8, 2019 : I have my oneplus 6t through T-Mobile. I just updated from 9.0.10 to 9.0.2 through settings update. after my phone is used for a little while I can't access my contacts to make a call. when I click on contacts the screen flashes and goes back to the home screen. if I reboot phone it fixes the problem temporary. having to reboot my phone way to many times just to access my contacts. help, thank you.