Update messed something up

The problem is I used to have some platforms that as soon as I would step on them they would instantly start to fall and as soon as I got the update it doesn't work. Only when I walk off of it. I tried a few things and can not figure what to do.

dropbox.com/s/ryom0vrmfg6ry9f/Jungle%20Tutorial%20%28Hulk%29.capx

Any ideas?

I don't think it has anything to do with the update.

In event 73, you need to set Playerbox to be the triggering object, not Player. Player's collision box isn't reliable because of changing animations, and it's for reasons like this that the tutorial recommends that you use a separate collision object (Playerbox) for all collisions.

Thanks, works perfect!