Starting amended 2024 return shows tax due BEFORE entering any information

Need to file amended return due to receiving a K1 for 2024 and our return has already been filed for a month.

As soon as I start the amended return, it shows a considerable tax due for federal, but the state tax did reset to $0. Looking at forms, on the 1040-X there is a large increase in the AGI, and I have no idea where this came from because I have not actually added or changed anything from my original taxes.

How do I track down this bogus amount shown on line 1B of the 1040-X?

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