You've entered the Form 1099-R incorrectly. For a regular distribution from an IRA (code 1, 2 or 7 in box 7 of the Form 1099-R and the IRA/SEP/SIMPLE box marked), box 2a must have the same value as is in box 1, just as indicated on the Form 1099-R provided by the IRA custodian.
However, it seems that the distribution was not from an IRA and you mistakenly marked the IRA/SEP/SIMPLE box on TurboTax's 1099-R form in disagreement with the Form 1099-R provided by the payer.
Delete and reenter the 1099-R form. If asked, indicate that none of the distribution is an RMD, indicate that you moved the money to another retirement account or returned it to the same account, then indicate the amount rolled over.
