Oh I see!
I understand what happened, it's not actually a bug, it's a feature :P (almost)
You flew up from the final platform to earth and hit Earth's orbit which was supposed to pull you into earth. I intentionally stop the oxygen draining in earth's orbit since "there's oxygen on earth". (And it's the ending so wouldn't want the player to die before talking to the earthly elf girl).
Thank you again for your time and effort, I am blown away by -Why did the chicken cross the globe!