Deductions & credits

I am encountering the same problem others spoke about on my Illinois State return.

Credit for Property taxes paid.

Enter the total property tax you paid in 2023 and the amount of property tax paid that was not on your principal residence.

I put the tax I paid in 2023 for the principle residence and Amount NOT on principle residence as zero.

It is flagged "needs review".

I put in the Tax paid on principle residence AND amount NOT on principle resience both as zero.

It is flagged "needs review".

I deleted anything in both boxes.

it is still flagged "needs review".

why does it keep flagging and How to get rid of it?