Hi folks, I got the new 12.9" iPad Pro last weekend. Everything has been great so far, with the exception of the volume up button. It seems like there's a manufacturing defect with the volume up button - it rattles when I lightly touch it but otherwise doesn't affect the functionality. Strangely this issue doesn't happen to the volume down button or the lock screen button. The thing is, my unit is otherwise perfect - no dead pixels/backlight bleed/excessively warm/cool colour temp on the display, no camera or speaker issues. My worry is that if I replace with another unit just to fix the rattling volume up button, I'll get a replacement unit with another problem elsewhere. I plan to use this iPad Pro for at least 4 years and I wonder if this is even something I should worry about. I just don't want to ignore this rattling volume now and this becomes a bigger issue down the road (e.g. button comes off, volume up function not working). Does anyone have the same issue with loose/rattling button? If yes, did you replace your unit with a new unit?