I have downloaded a couple sensor testing apps (AndroSensor and similar) to check. The testing apps show "waiting for event" for the deactivated sensors, and then show normal data when the phone is rebooted.
I just did a full Odin back to stock MJE, and the problem persists.
Any ideas what could be causing this, and what I could do to fix it?
Over the last month or so, I have noticed that all of the sensors on my Note 3 seem to turn off after the phone has been on for several hours. This includes the proximity sensor, accelerometer, and gyroscope at least, possibly more that I'm not aware of. When I reboot the phone, they all work normally for several hours, and then go dead again.