I have a jumping anim problem

I am using the third person shooter tutorial at A new, community-hosted Unreal Engine Wiki - Announcements - Unreal Engine Forums exactly. My problem is in my jump transitions. My controls work fine, but when my character lands from his jump, he twitches like a demented kangaroo. Now, I have altered my transition time, and this helps a little, but I am now at a transition of .35 on the in air to landing transition and surely, I shouldn’t go any more than that. It doesn’t affect game play in any way, but whenever the sprite lands, it’s like watching Jim Carrey having a fit, and it annoys the f*** out of me, as I’m sure it’ll annoy whoever plays it. How can I fix this?

Anyone? Could really use an answer.