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.

i.e. left clicking on vehicle to exit doesn't work.

If you get stuck in a situation like that could you try grabbing a screenshot if it happening?  Curious as to what kind of tiles are around the buggie, possibly blocking the player from getting out of it.

Also try to see if using the Enter key lets you get out (and in) of the vehicle.

I will look into seeing if there's ways of improving this though for the next update. Thanks!

Left-clicking didn't work in any of these surroundings but the Enter-key did! Yay!