Retirement tax questions

That is what I precisely did; So, no tax is calculated on that amount for MA tax (non deductible IRA converted to backdoor Roth ORA). That is good ; however, in the summary at the end of the state tax return,  along with W2 amounts, turbo  tax shows this amount also as additional income. It implies as though, this is additional income above and over w2s, which is not the case. This is part of  already tax paid income of w2. My question is, would this create a problem, as though I did not pay  tax on that amount?