I got an Ultra 2 a few days ago and have noticed a rattling sound on haptic alerts (I have alert sounds off). I think it's coming from the side button and if I lightly touch it there's some play in it and it makes a sound. Since this is my first Ultra wondering if this is normal? My gut says it's not and to just take to the Apple Store and exchange it. My 3 previous watches didn't do this, and silent alerts aren't actually silent with my Ultra 2.