This bug was rampant for a long time, and even after a few patches, it still occurred. People have figured out that there is a ladder glitch while in the Unreliable. To solve this, talk to Parvati before anyone else, then make sure that Parvati has finished moving wherever the AI sends her. The glitch is caused by the AI continuing to climb while you are conversing with someone else. Due to this, the AI leads Parvati to rise outside the spaceship and instantly hit the death plane.