I think it just has to be submitted. For my ED submission, my LORs were requested but one was not submitted by the deadline. I called the school and they said as long as they had it by the end of the month, it would still be considered. It probably depends on the school, but you have no control over the verification process. It still probably helps to get everything in as soon as possible because some schools use a rolling admissions. The best answer is probably to call the school. Good luck!