GPS won't work unless navigating

Howdy. So I've got a t-mobile S6 running Looper 2.0, 5.02, rooted. The problem I'm having is that my GPS will not activate in any kind of navigation app, specifically Maps or Uber until I actually start performing turn by turn directions. The location indicator will only show in the status bar when doing so. Clicking on the target reticle does nothing. Maps has full permissions for location (checked in app ops) as does Uber. The damn phone just never turns the thing on. Once nav starts though, it's fine.

I've tried reflashing the zip, wiping data, etc. Nothing seems to help. It's gotta be something I'm missing, and I can't find any hints or tricks no matter what I google for. Anyone have any ideas?