I just got a couple of iPad Pro 12.9s for the family. I've set them both up and tested them out. On one of them, the camera shutter sound is quite loud. The other one is having issues with the camera shutter sound even playing. When i first set it up, I had no shutter sounds at all. Somehow, I managed to get it to play (not sure what it is that I did to fix it), but it is very difficult to hear. I tried turning both volume and sound effect volume all the way up and the sound on the first one is a lot louder than the sound on the second one. I've tried everything that I can think of and I cannot figure out what's wrong with it. All other sound effects are the same loudness on both devices. Anyone know what I'm missing?