@rayman54 Unfortunately, there are some issues with macOS Sonoma and the framework we are using to make the user interface. We can only wait and see if either a new macOS or Tkinter version solves the problem.
@chuck666 This error comes up, when a file named saved_model.pb or saved_model.pbtxt can not be found. The file saved_model.pb should be in the bg_model folder when you have downloaded and unzipped it. On Windows, you have to put the bg_model folder in the same directory as your graxpert.exe, or with GraXpert version v1.0.6cAI you can manually select the bg_model folder directory in the advanced menu on the right.