Wasn't sure if it was my lack of sleep so I saved the clip to see what happened, as you can see... this happened.
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Similar thing happened to me, but it just sat there on the ground. I was able to jump it and climb all over it. If someone wants to go to that Xbox videos website and get the video my gamertag is MLGeeeeeeSuS. I'm on my phone right now so it would be a pain to find it.