If you indicated on your Federal return that your 401K distribution was 'covid-related' and were exempt from an Early Withdrawal Penalty, you may want to step through your 1099-R entry again in your Federal return, then go back to your Wisconsin return.
Wisconsin just recently changed regulations to conform to the Federal CARES act.
Click this link for more info on Wisconsin Conforms to Federal CARES.
This link gives instructions on How to Enter 1099-R.
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