I've downloaded the 2020 ProSeries product, and during the installation I chose to transfer all of my 2019 tax clients.  19 of my clients (mix of 1040, 1120, and 1120S) didn't transfer, and all I'm getting is a cryptic error message of: "an unknown error occurred while attempting to transfer".  Has anyone else run into this issue?  Thanks.

Larry Steffens