I ALREADY TRIED WIPING THE PHONE AND RESTORING FROM CLOUD BACKUP. iPhone XS. Touch screen goes erratic 1 to 10 minutes after unlocking, usually 1 minute. Does not respond to most touches and sometimes creates ghost touches when my hand is far from the screen. Locking and unlocking the phone fixes it for 1 minute 100% of the time. Issue started immediately after latest update, 13.5 or 13.5.1 I think. Never the slightest problem before.