I've got a vehicle driving around. The vehicle has a flag pole attached to it. You know, like some beach buggies do. I made a hair curve that drives the flagpole's deformations and attached a wire deformer to the flagpole shape. Now, when I play the simulation, everything is perfectly fine during the first frames. But soon enough, the flagpole's geometry begins to deform in a very odd manner. I've captured it on the image below. What could be the cause of this?