I had installed Good Lock 2018 and installed some of the apps from there. And I noticed that while opening YouTube in landscape mode, I can not drag notification bar and also can not use the back button. Futher I can not skip the ad. Also in Samsung default video player, same problem arise (no notification bar & back button functioning)
I uninstalled all the apps from Good Lock as well as Good Luck itself. But still the problem arise.
Is it some other setting or the real problem? Needed help.