Deduction for Income in Respect of a Decedent. Turbo Tax Premier

In past years I have been able to use TurboTax to enter the deduction (not subject to 2% AGI) for IRD related to an estate tax return.  This year (2021) I cannot make it work.  I have read similar online posts and the answers from the experts.  I am convinced that there is a bug in TT 2021 Premier and the steps to enter the IRD deduction do not work as claimed.