In this latest fix we address some issues with our Steam Cloud integration. We've compressed several save files transferring between client-> server into a single file updated at game start/end.
Those who are still getting black screens at the beginning due to the Achievements string bug should be able to play normally with no adjustment made on your part.
As always, we will continue to observe and collect information for our next in-progress patch. We were hoping to bring our game to you on the newest version of Unity but unfortunately they have a number of issues to work out on their end before that will be possible.