Turbotax is saying return rejected due to incorrect AGI, despite coming from my 2018 transcript. Appears it's sending the wrong number, saying "IRS already rejected $0"

I am entering my AGI per my 2018 transcript, but it keeps getting rejected , and when I check turbotax after the rejection notification it says "The IRS has already rejected this number:" and then shows a number different from what I entered, such as $0.