Unable to import 3D Model "because the file was not found"

1. Version of the app
   26.2.0
   
   
2. Platform and OS version
   macOS 15.0.1
   
   
3. Basic steps to reproduce the problem
   

   I am following this tutorial:

   https://helpx.adobe.com/substance-3d-viewer/using/photoshop-3d-intro.html#:~:text=In%20Photoshop%20(beta)%20app%3A,accessible%20from%20the%20Layers%20panel.

    

   I can not get past step 1. As soon as I drop in the sample file provided (Green_headphones.usdz) I get this error:
   
   Could not place "Green_headphones.usdz" because the file was not found.

    

   I get the same error if I try to import one of my own 3D objects.
   
   

4. Expected result and actual result

It should import the file, but it doesn't