Prevent sleep permission not working

[sargent1989]

So I just got Pokemon Go on my partners Galaxy S4, and it has the "Prevent phone from sleeping while app is open" permission, as it should. However, the phone still goes to sleep while the app is open. Anyone have a solution to this, apart from changing sleep timeout to 10 mins?

 

[punishedsnake]

Htc10 here same issue

 

[Phases]

Well, if you have developer options you might have the selection to 'keep screen on while plugged in' but, that only helps if you're ... plugged in... and have developer options heh. I've used that myself.