Why does Illinois Department of Revenue say residents may not claim a credit for taxes paid in Wisconsin, when Turbo Tax forms allow for it?

TurboTax said I owe IL State $102, which I paid. Dept of Revenue now says I owe $380 plus penalty, when the $380 was withheld by Wisconsin. If that law changed, TT did not reflect it in the software. Now I'm paying a penalty and interest.