1099-R with a distribution code of 2B in box 7B not allowed?

[rs1968ss]

I received two 1099-R forms. One has a box 7B code of 2 and the other has a 7B code of 2B. During the final checkup before filing, I'm receiving an error stating that "box 7b distribution code is invalid. A distribution code of 'B' should not be used for IRA distributions."

The B should designate a Roth correct? Not sure how to proceed.

[rs1968ss]

I found the answer:

"In the follow-up to entering the code 2B Form 1099-R, you must indicate that the distribution is NOT from a Roth IRA.  TurboTax needlessly asks this question which serves only as an opportunity to make a mistake in answering since code B already explicitly indicates that the distribution from a Designated Roth Account in a qualified retirement plan, not from a Roth IRA.

Go back and edit the Form 1099-R and correctly answer the question."