I just called into the support line, again.  The support person said this is being looked into.  I received a case number and investigation number (support said it is not a ticket number, but case and investigation).  Thank you for letting us know to reach out to support.

If enough of us report this, insisting on a case number and investigation number, maybe they will atleast support the calculations in schedule 1 and the credit on MI1040.  New Michigan form 6072 would also be nice to have, since it is now required by Michigan when filing a return with flow through entity credit.  Not sure if this is something we could attach to the return if we need to manually complete.