There’s a bug going around at the moment that is blocking users from unlocking their iPhone 13 with their Apple Watch. Imagine waiting a whole year to upgrade from your iPhone 12 Pro Max and Apple Watch Series 6 to the shiny new iPhone 13 Pro Max and Watch Series 7 on day one, only to find that you might have been better off waiting a week or two. Some Apple fans are a little upset of late, and for good reason.