exactly! I thought it it might be something that I messed up in the setting, that isn't the case though.Apparently, it is horribly draining my phone battery too.
Yes I the same problem after 6-7 months of use. So I think it's poor reliability and quality issues. don't fell surprise when you find screen burn in problem after 1 year use.
same happened with me as well. even after using my s7 with utter most care there is a visible scratch on the screen.Yes I agree s7 screen protection is sub standard.