Location Tracking, Time regulation not working for Android Family Safety

I have two Android devices with a Premiere subscription. The one son's tablet works perfectly with all features. The other son's Republic Wireless Moto G (Kit Kat) worked fine for a few weeks, and then I noticed that he wasn't being blocked for time usage over the specified amount. Also, there is no way to track the devices location and this stopped a while ago. Using Google Device Manager, I can ping and track his phone perfectly, so location services are working fine. I also did all the usual tips suggested (re-install app, refresh the account info, etc) with no success on this. Assistance please??