Taxes rejected due to dependent already filed

From reading here I  see this is a common issue with TurboTax. My daughter filed her taxes as I watched her and she checked the box that someone else can claim her. Same night I filed our taxes and they were rejected. We checked her form which was already accepted and the box was empty? I watched her check it. Anyway chatted with TT agent and he said get an Identity Pinn for my daughter and re efile ours - did that and still rejected. Seeing on here only thing to do is my daughter file and amended return and I file on paper. Do I need to wait until her amended taxes are done before I mail mine in or can I mail them now?