After I entered this sandbox with a 1600 part plane, I experienced quite a few bugs simultaneously: firstly, the astronaut started shaking in the cockpit at high G's (probably due to the ejection seat installed). Secondly, when I ejected using AG 2, the astronaut began to float up and down in the sky for 30 seconds, until it entered the water. After entering the water, the astronaut was not able to EVA out of the seat and sank down to the bottom, where it exploded upon contact with the ground (clearly a bug).
