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Hi - no, I did his return myself and it shows the box clicked, just like the OPs original question. Here's a screenshot from his completed and accepted return:

I double checked his SSN on his return and my own several times. Nothing has changed about this process for us in the last 3 years of submitting so its odd that I'm getting an error this year. I guess i will just mail my return in with him included - should I also include a copy of his return showing the box checked off as well as proof?