I just upgraded my 2013 Moto X to Lollipop. The proximity sensor used to work and now it doesn't seem to. I used to be able to wave my hand over the front of my phone and it would wake up so I could unlock it very easily. Now the phone doesn't seem to wake up unless I press the power button. Is there some setting I need to change to allow this or is this a weird Lollipop thing? So far I'm not too keen on Lollipop.