Given that you are looking to import again next year, I would highly suggest that you enter the new data with the 2019 shell so that it is actually carrying forward to the 2020 correctly, and thus will (in theory) carry forward to 2021 correctly. Having said that, I would have manually input again but that is just based off of my experience with many other tax preparation software systems. K-1 information is much more likely to be completely accurate if manually input into your 1040 questionnaire.
