Why is turbo tax saying I don't qualify for the dependent care credit when my spouse & I both work full time and we have 4 children in full-time care?

I am active-duty military and my spouse works full-time as well. We have an Au Pair who provides 45 hours of childcare for 4 children 5 and under. We claim all of our children. It allowed us to claim the child and other dependent tax credits but not the dependent care credit. It asks me the two questions and then tells me I don't qualify. It will not even allow me to enter all of the childcare expenses.