I know this was mentioned some time back but I was wondering if anyone has found a fix or work-around for this? I often get a random app opening when I swipe to unlock my screen and it's getting pretty annoying.
Is it an app that you were recently using? I wonder if it might be an issue with the TouchWiz Launcher, such that it isn't automatically opening first. I notice this on occasion on my Zenfone 2, where if I start hitting the Back button, other previously opened apps show up, instead of the homescreen. I have to tap the Home button for the homescreen to launch again.