I'm getting the same error on an iPhone XS, it just sit on the locating board forever and spams this error
Error Domain=com.apple.vis Code=12 "processing with VNANERuntimeProcessingDevice is not supported" UserInfo={NSLocalizedDescription=processing with VNANERuntimeProcessingDevice is not supported}
Version 12.0 beta 4 (12A8179i)
iPhone XS on iOS 14 beta 4
compiled with both a macbook pro 16in 2109 running Catalina 10.15.6 and a macbook pro Big Sur 11 Beta
Devin7
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There's a lot going on in the feature rich app, it would be great to see the simple FitnessTrainer source to learn from a simpler project