With a cycloidal pulse sliding the ground to the right, a slender Havock Physics block sways then unrealistically stops, seemingly reaching a perfect balance on its corner, while a PhysX block with the same dimensions continues into a rocking motion. In the real world, such a precarious balancing act would not be believable. With other, even slightly different values for the acceleration of the pulse, the Havoc block sways, rocks and falls comparably to the PhysX version. I can't figure out how this undesirable balancing act is achieved. I have turned "Enable Sleeping" off in the Havoc Physics Configuration and also tried setting Linear and Angular Damping to 0. I am using Contact Point Welding (if that is removed, the block does not stop on edge like this, but its motion is much more erratic, as discussed here). Is there something I can do to make sure that such an "unstable equilibrium" does not happen?