PSK problems

I am having some problems with the platformer starter kit. I already fixed the problem with the spawn object behaviors but now I have some new problems. when my dragon spawns, he falls and hits the platform, but he stays in the falling animation, so I cannot jump! I can move around on the platform, but I never seem to exit "falling mode" and enter "walking mode"

also, when I get close to an enemy, it begins to move (i.e. head right) but it just falls through the platform and into nothingnesss.