Same thing happened to me. Except when I received the forms from irs stating they sent all the money to child support it told me to send in an injured spouse form so I did, even though I filed injured spouse with 2018 and 2019 tax returns. However I do know that even if we have to wait till 2020 tax return filing to get our portion attorney generals will have to send the money back to IRS if the IRS requests the money back. So if the custodial parent spends that money they will have to pay it back to attorney generals.
