for what is worth, i had a connected session again this past Saturday (5th or 6th times) with one of their online tax expert (who claimed had 10 years CPA), he was not aware of the this "known" defect in the TT and did some further research on the "simplified calculation" vs "other calculation". He assured me there is no adverse effect if I choose "other calculation" if there is no AMT due. He explained to me that this choice will only matters to someone who is the first time eligible for such selection and have an AMT due at the same time. I asked him if I can switch to the simplified calculation next year if there is an AMT due, he confirmed as yes.
So he instructed me to switch to the "other calculation" and then e-filed again. As expected, both Federal and State got accepted, no surprised there.
