I opened the original return and went to other forms / Amend return. When I clicked in the box to Amend I didn't receive the popup to copy the return and copy the data to the 1120S-X. So I don't see an 1120S-X after entering the changes and I don't see an 1120S-X in the forms.
When I check the state there is a 100X but it didn't copy over the existing return data.