Limit on amount of joints on a Rigid Body?

Hey,

I’m trying out Havok for my game and am having an issue where the more PhysicsJoint I attach to one body, the more unstable it becomes. After around 5-6 joints, the body immediately breaks and shows NaN for all position values. I’m wondering if this is a known limitation of using Havok as a physics engine, or if it’s something I’m doing wrong.

The basic setup is something like:
A->B
A->C
A->D
A->E
etc…
Where A-E are physics bodies.

Thanks in advance!