I am trying to amend an individual income tax return to include an extender (retro) on form 8908 (energy efficient home credit). The input fields and the form are in the program however when I enter data in the form 8908 input field the forms (form 8908 and form 3800) do not populate, and the credit is ignored on form 1040.  Does anyone have information on this retro extender item as to if it is scheduled to function at some future date?