It seems that I am not the only one with this issue. Previous contact from another user has similar msg when running a check.. My issue is also one probably created when 2019 taxes were transferred into 2020 where all the 2019 info did not transfer in properly. The solution according to the one case I read was due to an incomplete transfer of data from 2019 was to start a new return. That is pretty bad to have to re generate the entire tax over a failed transfer.
