I just did an update and Logos required a re-start. Once restarted, I tried to open Logos and just get an error popup with the Logos logo and a choice to press "Yes" or "No." If I press 'no', nothing happens. If I press 'yes,' I get another message that says "Logos Bible Software is up to date."
I'm running Windows 10, if that helps. It was running fine on Win 10, before update.