Back button is not working

  1. L1516350465883
    Cupcake Jul 6, 2019

    L1516350465883 , Jul 6, 2019 :
    Dear Team,

    After updating my OnePlus 3T device to pie, the first thing I have noticed is fast battery drainage. Now the second important thing is my back button is not working. I cannot go back to previous page unless the go back button is on the screen of the page.
    Third, I cannot close the apps that I have opened. So the button on the bottom right side is not working as well.
    kindly let me know if this can be resolved ?

    Thanks Dear Team,
    Today 9th July 2019 with latest security patch update, my physical back button is working fine now, but the other button where I open or close my previously opened apps is still not working.
    kindly look into the case.
    Last edited: Jul 9, 2019