ImageSynthesis.OnSceneChange NotImplementedException

NotImplementedException: The method or operation is not implemented.
ImageSynthesis.OnSceneChange () (at Assets/Unity-Technologies-ml-imagesynthesis-2b2bce9c0fc3/Assets/ImageSynthesis/ImageSynthesis.cs:76)
ImageSynthesis.Start () (at Assets/Unity-Technologies-ml-imagesynthesis-2b2bce9c0fc3/Assets/ImageSynthesis/ImageSynthesis.cs:71)

Could be something about the loading state? Anyway you should show the code line or I think nobody can help.