Images not showing in Form Recognizer Label Editor

I have created a Form Recognizer Service using the Quick Start instructions and created the connection and project in the label editor without errors. The SAS URI is valid and the Form Recognizer key and end point are valid. I have validated the container location by entering the URL with a file name in a browser and viewing them. According to the Instructions in Quick Start and instructions provided by Microsoft and others my setup is complete and correct. When the project is saved the image files are supposed to appear in the label editor and they do not. I have created numerous projects and connections with the same result. I believe the key items are the Form Recognizer end point and key, the SAS URI, and the source (the form to be recognized) location. Everything else is text of my choosing. Can you provide any insights into what I have missed? Thanks