Flushing the DNS did not work for me! What worked for me was to... Turn off Beta Updates and Restart my Mac Install the Release Candidate Xcode 15 Command Line Tools Restart again Start Xcode

@OOPer, thanks for this work around! I can use it while I file an enhancement request with Apple for additional options to be added to SceneView.Options using Feedback Assistant. - https://www.example.com/. Thanks @gchiste, I am going to file an enhancement request! 😀