First unemployment deposit is late, what should I check? - 7 months and counting

I was laid off as a production planner and filed right away, and I have been certifying every week. I worked as a production planner before this. I answered every question and uploaded my final pay stub. Is there a step I could have missed?

When I finally got through, the agent said my employer had responded late. Once that cleared, back pay came in one payment.