Oh. Might be a collision issue I think. I do know that there is a collision issue which I unfortunately couldn't fix due to time. Just to be sure, by truck you mean the 4th level, right?
The very first obstacle, white block that looks like a truck to me. I might be very tired and that might not be a truck though hahaha
Ahhh. Gotcha. That is a collision issue. Couldn't fix it in time unfortunately :/