Offline teacher recommendation / error with online recommendation form?

I submitted my apps but my 2nd teacher recommender hasn’t submitted his recommendation yet.
My friend asked him around the same time in late September and got hers by her ED deadline, November 1.

I asked him about it on 1/4 and he said that he would try again, but the Common App still says “not submitted.” He knows how to properly submit a recommendation, and I checked to make sure his e-mail didn’t have a typo.

I was going to ask for printed recommendations, but I signed the FERPA agreement and I have eight colleges – would asking him to print, seal, and sign eight recommendations be rude? Has anyone had this problem with the online recommendation form?

Thanks.