The app seems to think my husband had a lapse in high deductible coverage. There was no lapse. What am i doing wrong?

I just posted the exact same question. Commenting for the follow. 

I just went through the HSA section under Income & Expenses and I found that I was asked the same question prior to being asked about coverage.

If you answer that question, No, a few screens later you will get a screen that allows you to indicate your plan for each month.

There is also an HSA section under Deductions & Credits. If you go through that one, it asks about the entire year in one question. 

It is awkward, but if you answer the HSA questions in the Deductions & Credits tab, it makes more sense.