Default [Q] Keep awake disabled for all apps on Nexus 5 PA 4.1beta

Hi I think I may have set a system setting incorrectly and now none of my apps can forrce my nexus 5 to stay awake, including google maps and runkeeper which I use for driving and cycling respectively. I have enabled keep awake in the app privacy setting for both apps, to no avail.
I have also set every google system app to keep awake as well, bu this has not helped. Any assistance would be appreciated.