Information flows from the federal return to the state return.. Why do you think changing the information about a dependent on your federal return could not affect your state return?

My ex gets to claim our child this year only for the child tax credit on federal. I still get the EIC. IL state does not have a child tax credit, but they do have EIC. Nothing should have changed on my IL state. The dependant status is only used for federal. I did not have this issue two years ago. When I plug the info onto other programs, it shows the same tax amount as it did on TurboTax before I changed the federal. 

You will have to go back to the state section and go through the first part again to get the correct credits.

@tcairns3