I have submitted feedback along with a sample project with code used to load leaderboards on the Watch. The Feedback number is: FB11645950

This is still an issue with Xcode 13 beta 3 with Simulator running iOS 15 beta 3. If I run my SpriteView() code on the Simulator with iOS 14.5 it works fine. Hopefully this will be fixed in iOS 15 beta 4!