After you file

I am not sure if the non zero amount is due to changes in tax law. I am seeing the exact refund that I got with my original return as the starting amount instead of zero. This is a big problem for me as this amount stays same after amending the changes and I already received the refund. It is noteworthy to mention that my amend is addition of a form for which there will be no change in tax liability ( no tax payment or refund)