This is happening to me as well. I called turbo tax and spoke with someone (2 agents actually). Since I am doing this on my phone using the turbo tax mobile app, the Agent was able to do a screen share. The Agent was not familiar with this kind of error. I had the phone on speaker so that my wife could verify her information for net income, since that is the only thing that applied to her Tax return. Anyhow, long story short - there was no solution other than being advised to try again another day. I'm thinking maybe a bug in the app? Not sure, but I would really love a solution to this.
