Bullet World.Step causes 0xC000001D: Illegal Instruction (C# BulletSharp)

[pogrammerX]

So i am using BulletSharp in my project.

This is the code i use to step it:
if (settingScene) return;
if ((float)simTime.Elapsed.TotalSeconds < time)
{
time = 0;
timeStep = 0;
}
timeStep = ((float)simTime.Elapsed.TotalSeconds - time);
time = (float)simTime.Elapsed.TotalSeconds;
world.StepSimulation(timeStep, 7);

Everything works fine as long as i only add BoxShapes, but as soon as i add a ConvexHullShape it starts crashing.