The latest version has broken a lot of things on our end, we however still have playtests, we have found a way to launch the project with an old version of the engine (1.46.5), but is it possible to make a build with an older version of the engine?
Sorry i should have added that we are in contact with the team on mail.
But the building with an older version seemed like a separate problem that potentially could be fixed here, and would add value to other projects as well.