I find that Android gets confused when returning to an app which has opened another app. It gets confused about which app is which. E.g. Open video file from file explorer. This opens the file in a video app. Go and do other stuff, then run file explorer and it opens the video app instead. E.g. Select a youtube link in Chrome. That takes you to a youtube app. Select chrome from the app selector and it takes you to the youtube app not chrome. This seems like a malfunction to me, maybe a deliberate one. Any way around it?