Collision detection stops working after a short time

I have an idle animation at proiority 100 connected to a collision sensor (touch sensor gives identical results) so that it only plays while he is touching the ground. Looks pretty good, but it only works for a minute or so. I was having a similar problem with “random” actuators. Why is this? Is there some kind of limit to to the number of pulses a sensor or actuator can make?

Yeah, I am so awesome replying to my own thread.
Ray does the same thing. No ideas?

AAAAH, for STUPID! just gotta turn on true and false pulse