And your job is to provide service to us, since we pay for all that devices, developer programs and fees.
If I'd be "serious about engineering with you" I would pass the interview and become part of the team. Otherwise I suggest you to start reading forums, as all other big companies do. At least the Apple forum. Here's a 39 replies thread https://developer.apple.com/forums/thread/734694 named "Apple Watch cannot reconnect". It indicates that many people have the issue, and it worth attention.