AndyM - Do you have some news about running vw 2016 on the new MacBook Pro with Sierra? I got the same problem, but the trick with turned off wifi doesn't help. Could it be that the pb comes from renderworks? Because a colleague is using vw2016 (architect) on sierra as well and on his older MacBook Pro it just works fine. Any ideas to get Vectorworks/Renderworks 2016 running on the new MacBook Pro with sierra ??