Did you use the same account when you created your son's return?

Yes I used the same account.  I can open his return under "My returns" but not under the archive of all the returns I have filed with Turbo Tax.  It doesn't show up under the 2024 drop down.

The home page displays it, but not the filed returns? Can you verify that his return was filed by opening it? 

Yes I can open it. When I view it on "Finish and File" from the home page, I can see a confirmation number. It says his return is filed.

Then it should be good. As you have access to his return and the Netfile confirmation number. 

I do, but it is not organized with my family's returns in the archive "Access filed returns" by year 2024.

Please contact our phone support team as they will be able to assist you further.