EDIT 3/30/23: I went to go remove code G as suggested in a comment, but HRB seems to have finally resolved this issue.
I did an in-plan conversion to Roth 401k, so my 1099-R has:
Box 1) $amount
Box 2a) same $amount [which it should be in this case]
Box 7) G (direct rollover)
Selected "I...