Found this while searching for a solution to same problem. I keep passwords on a notepad. While logging in to app XYZ, it wants to send txt verification code. So dummy me swiped down app XYZ, opened txt got the code and ?? what the Sam?? happened to the app XYZ?
So.... I reopened app XYZ, re entered password from notepad etc and it sends yet another txt. Same weird loop
OK FIX... its in Gestures and goes like this. From bottom of screen swipe up about half way, and hold it for a split second. The current app shows up with other previous apps to the immediate left. Then, while still holding down on screen you can move slightly left & right and view that previous app. Or, just tap it & open it. Swipe up closes it,and, provides all other apps that were thought closed already. There were a bunch, I just rapid swiped up each one and closed them.
Work on Owner profile or any other profiles. :-)