A lot of changes were made to the TurboTax software and released on 2/19/21.
Please update your TurboTax version of the software and then go back into your return and correct any entries.
It may have just been asking there was a 1099-B associated with the 1099R. If not, you should be able to say no, I did not get one and keep on going or respond with "skip it".
Please update if you are still having difficulties in this area.
