Michigan taxes my pension at 50% I was born in 53? I now see MI Schd 1 line 26, 24C & 24D are blank. Taxed at the full rate! Anyone else experience this? How to fix?

It could be due to how you entered your pension in TurboTax.  There are some questions in the federal section of your return, after form 1099-R asking where your distribution is from.  

Then in the Michigan return, there are additional questions to classify your pension.  The questions are to determine what type of pension you have.  There are some codes depending on what the source of your pension is.  See the codes below:

G - if the pension is from a government or public source

P - if it is from a private source or an IRA

C - if it is a 2024 Roth conversion

N - if it is an other pension subject to Michigan tax (including ALL Section 457 plan distributions)

M - if it is a Military pension

R - if it is a Railroad pension

If you entered the income incorrectly on the return and you already filed, you will need to amend your return.  See the following TurboTax help article for more information.  

How do I amend my federal tax return for a prior year?

How do I amend my state tax return?