OK, I have a func_conveyor representing some sort of waterfall.
The thing is, I want it to be toggled on and off. With a couple of env_renders, it is possible to make it visible/invisible. The problem is, that when it becomes visible after having dissapeared, the func_conveyor is not moving. Is it possible that the targetting done by the env_renders is also making it stop?

Edit: apparently, it does. And you need to trigger the func_conveyor two more times. With the first of those, it will start moving again, but in the wrong direction. With the second one, it will move the way it's meant to.
I hope this helps someone in the future!