Agility Course Issue

I'm trying to get my sim's dog to run the agility course with my sim, but no matter what I do he will only run through the weave and stop. I don't know if the course is not connecting correctly or what. I've tried moving some of the pieces and even removing some of them, but he still only runs through one thing.
Also, I've had my sim tell him to use the course and on some of the turning tunnels he goes through the wrong side, but I need the course to turn that direction in order for him to do more of the course. I don't know how to tell him to go through the opposite opening or even why he's going through the wrong side. My sim has level 4 pet skill.
Please help