Im thinking if you had converted Drake 2020 to PS 2020 then transfer PS 2020 to PS2021 it would have flowed correctly (but maybe thats not even an option?).

Were all just other users here, we dont see many conversion questions in here aside from converting Turbotax files to ProSeries and to convert TT files to PS, it has to be TT20 to PS20 then PS20 to PS21.