you probably filed the amended return before the IRS fully processed the original return. this can cause delays because the original efiled return goes one route while the amended went another and now the IRS has two returns that need to be processed. with different departments handling them. there is also the possibility that the IRS disagrees with the original return which would change the numbers that need to be on the amended return. in future if you need to file amended return wait til the original is fully processed which means your payment if balance due has been cashed or you received your refund.
