Had the same error happening to me. I used the workaround of selecting dependents with 0 MAGI and I noticed that after that the form 8962 now has a "0" value in field 2B (you can check that by switching from "step-by-step" to "form view" in Turbo Tax). I just filed again and I am waiting for it to be accepted. We'll see what happens this time around.
