I was working on a replay and when I rewatched the replay it had a spike right before I kick the head. What can I do to fix or prevent these spike glitches. I'm on my phone so I can't upload the replay but you can click on the link in my signature to see the replay in talking about. The name of the replay is buy me a scarf. When I head kick uke the replay spikes. Again, what causes this, what can I do to fix/prevent this from happening?