If I take my Droid Maxx out of the case, hold it vertically and tap on the back under the camera lens/speaker, I hear a rattling sound like something loose is inside. It happens with the case on also. I noticed this initially when I was just setting my phone down, I'd here a rattle. It is not the volume rocker or power button that is rattling. It sounds like it is coming from the camera/speaker area. Anyone else?