<p>One of my teachers already submitted his through Common App, but my other teacher had problems with it, so he printed them out and I'm going to mail it. Will this have any effect on me?</p>
<p>No problem at all. This will be just fine. Your common app account won’t update, of course, to show the mailed rec as submitted, but that isn’t an issue. So long as your school receives it and matches it to your app, it won’t be any problem.</p>