Hi,
We’ve been struggling with an issue where, specifically on the Note 4, our app closes immediately after being backgrounded (either by using the home button, tapping the multitasking button, actioning on a link, or logging in with Facebook). We’re well aware that there are no guarantees with backgrounding, but this is causing issues with Facebook login support when we lose the callback to Facebook once the app crashes. Since this seems to be a Note 4-specific issue (Note 3 and Note 2 run fine, as well as the DROID Turbo, HTC One, and various others), we were wondering if there was a reason why the Note 4 specifically seems to have this issue.
Running Unity 5.0.2, also tested with 5.1.2p3 with identical results. Also tested with a minimalist project containing one scene with a pair of images and one button (only using Unity-provided scripts such as Camera and Image) with the same results. Note 4s running either Android 5.0.1 or 5.1.