first year i can't e-file: "elected simplified AMT foreign tax limitation"

i have been e-filing successfully with TT since it was first available.  have always had to use form 1116 and 1116-alternattive minimum tax (electing the simplified AMT foreign tax limitation).  for some reason i cannot e-file this year.  turbotax's "1116-amt" not acceptable for e-filing anymore?  only thing i can think of.

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