I don't know if anyone else is seeing it, but there's a problem with the Unified Daemon (EUR) in this Android 5 update. It's causing the GPS to continuously cycle on and off. Disabling the Daemon stops the GPS from cycling on and off. But disabling it also prevents location data for the weather app and other things that use location data.
Mine is working fine. You may need to factory reset or have the ROM reflashed at AT&T store.
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