UE3 - UT3 Lift Problem.

So I have a lift in my map that isn't working right.
When the palyer stands on it it goes up fine, and then stops, but the problem is that it doesn't come back down it just stays up.

So like, if the player goes to use the lift it goes up, and even if you get of the lift at the top it won't go down but the sounds still play as if the lift has moved down but there is no animation.

And then if the player stands on the lift at the top (while it SHOULD be at the bottom) it suddenly "teleports" back to the bottom and then goes back up as normal.

Does anybody know whats wrong and how to fix it please?

there some screen shots of the lift, matinée and kismet below

Thanks,
so i tried that now, but its still weird. Sometimes it works but sometimes it just doesnt move at all and the sounds still play. its totally crazy. I even made the all setup again but it still dont work.There is other lifts in the level that work fine :S

I could replace it with a jump pad yeah, i don't think i will do; anyone who has given feedback on the map hasn't actually said anything about the bug so i'm starting to think its just happening for me