unemployment income taxed on 2 state returns

I filed part year returns in Iowa and Illinois after moving to Iowa in 2020.  I have unemployment income that is being captured on both Iowa and Illinois so it is getting taxed twice by both states.  I move to Iowa for a job so it should be just on the Illinios return.  I am claiming Iowa residency for 2020 and I can't remove that income from Iowa return.  Please advise a fix. Thanks