I'm not sure about the mission objects. I only know one place where one can add mission, that is the type of the project itself. Maybe you can show a pic of the inspector and project window.
The problem with unknowns your can fix the way that is mentioned above (place actual output package to community folder and build externally). There was a trip from someone who said that placing the project folder to another place and open project from there also works.
But i didn't try it yet.
The problem with unknowns your can fix the way that is mentioned above (place actual output package to community folder and build externally). There was a trip from someone who said that placing the project folder to another place and open project from there also works.
But i didn't try it yet.