I am using the Wyze android app released on Oct 31, v 2.36.0 (96) on a Motorola G Play 2021 android 11 phone fully updated. Run in background makes no difference. If I swipe away or ‘clear all’ the app to remove it from the recent list and then reopen it the person filter in events has reverted to off. Note I’m also having a problem with my person tags and notifications so maybe it is something specific to my account.