I, too, have been going round and round and round trying to transmit my return with it continually coming back to they found a mistake. It takes you to the disaster distribution question being X'd in red and you cannot off-check it. AnnetteB6 has the answer that fixed my problem. Search for her among the posts for the answer.
TT is a joke when it comes to making things easy. First, I could not import last year's 1040. I use TT just because that saves me the pain in the neck of re-entering so much info. I cannot imagine why they do not know about this issue nor have fixed it (every time you open it it wants to update, so you know they do try to correct problems). So, that combined with this particular problem (the answer is to check No that you have received a CoVid Disaster relief check (which is not checked) and then try transmitting again. Mine went right through. Phew!
