In editor my scripts work, but in a build something gets messed up and scripts dont work. The build run's, but my custom actions dont work. In short: I have a user helper script in my simualtion project, wich helps the user to automatically engage the clutch while shifting. This works in the editor, but in a build there's no effect! Also it worked in Unity 4.x Posting code is not nececery, it worked before and it works in the editor. My script gets updated in FixedUpdate() right before I pass the values to my plugin, so everything seems logical.