Deductions & credits

I included the interest expense on my home along with re taxes and when completed it appeared in the turbo tax summary screen. But finishing all data, it kept telling me to take std ded.

I had to go to forms view and manually enter the home interest  expense and it took. Why did the step by step not do it properly?

A little disappointed in this. Please explain, so others are aware of this. I'm a CPA so I caught the error.