On my new phone, a Moto Z² Force Edition running Oreo, apps disappear from the 'recent' list BUT they're not actually closing...they're in limbo somewhere! Say that I'm using the NextDoor app, and I leave it on a particular post. Some time later, after using other apps, I scroll the recent list but NextDoor is not there. I have no choice but to launch it from the app drawer; when it opens it's right where I left it, instead of going to the log in screen as would happen if it had actually closed and then restarted. On my previous phone, apps stayed in the recent list until I closed them; that's what I want on my new phone. I'm halfway there because they're not closing...but they're not conveniently accessible either. What setting(s) am I missing?