Amplify pull --sandboxId UUID results in Failed to pull sandbox app

Question

I'm trying to generate the data models from Amplify Studio using the "Amplify pull —sandboxId UUID>" command with my ID while following this tutorial for setting up AWS Amplify. The error message "Failed to pull sandbox app" is the result of this. I have no idea why this is happening, so if anyone has any ideas, I would be very grateful.

Both "amplify env pull" and "amplify pull" worked without any problems. I have no idea what might be creating this new problem, and I can't seem to locate a solution.