Why does my S6 disable GPS on lock screen?

[AC Question]

I use Endomondo app for running/cycling tracking purposes. Just got an S6 and noticed no updates while running. When I turn on/unlock the screen and it goes to the Endomondo app, it always says ... GPS Disabled ... then it quickly finds me and continues tracking.

Is this a phone setting? An app conflict? Or just something that LP does when the phone screen is off/locked? Need to disable this.

 

[Ted54321]

Same here. Was there a recent update?
Can't find a fix. Gps stops when you hide the app that is using the Gps.. ie.runkeeper