I am not sure when your state forms will be updated but the IRS did provide this information.
'The IRS has just released a statement saying that they will begin re-calculating tax returns with unemployment compensation in May and paying adjusted refunds or applying the adjusted amount to previous tax debts. The IRS will process taxpayers claiming the $10,200 exclusion first, and later they will process married filing joint returns that are claiming the $20,400 exclusion and other more complicated situations.'
So do not file an amended return for the Unemployment Exclusion.
