Left-clicking didn't work in any of these surroundings but the Enter-key did! Yay!
i.e. left clicking on vehicle to exit doesn't work.
I have two bases set up and after I built a garage at the second base (maybe coincidental?) my meowstronaut can't leave his vehicle. Poor thing suffocated in his car.
Sometimes when I right-click to build, the object doesn't finish building but remains a scaffold that can't be manipulated.