Most likely, it's just glitched out on you. Try exiting the game, then load it up again.
A hard reset often helps most xbone issues - turn off the xbox by holding your finger on the console's power button until it switches off completely, wait for the light on the power brick to go orange, then push the power button again to turn it back on. Some people disconnect the power brick and tap the power button a couple of times to drain any residual power but I'm not sure that's necessary.
An xbox support guy told me that for a hard reset to be done properly you need to have "instant on" switched off, otherwise the xbox is never truly "off", but I couldn't swear to that.
Sorry if you knew all this