Hey! Thanks for the feedback! Try instead of leaving spine as the last thing, throw it before u throw your arms. U can only throw things if u have arms. The spine will be thrown with everything except the skull.
For example: I thow my legs through a gap, then try to throw my spine which also throws the arms, then I can just pass through and recollect it on the other side if needed.
The bug comes from the spine being put down in the ground which makes it clip through.
Thanks again!