So basically, I'm making a track where you ride on top of a moving object as it goes along a track. The object is just a shipping container with two thrusters attached on the bottom.

Everything works fine until I use a trigger. I used a trigger to cause an explosion in front of the moving vehicle. This explosion had absolutely no affect on the moving vehicle or the track it rides on, but for some reason it affects the speed of the moving object and the object can no longer finish the track correctly.

First, I had the shipping container hit the trigger, which caused it to pretty much completely stop in place, as if the trigger were a wall. Then, I had the biker hit the trigger. This worked better, but the shipping container slowed down for no reason and could not make it up the next hill.

The trigger has absolutely nothing to do with the vehicle and simply causes a box to explode and some objects to drop. Why it affects the shipping container at all is a completely mystery to me. Does anybody have an idea why?