Resolved Havok misses collisions at high object counts.

I've linked a video that shows spheres passing through each other seemingly unbeknownst to the other's existence. Though it seems to work fine with only a couple of objects in the scene at once. I really can't wrap my head around why this is happening, it's not the Solver Iteration Count, in the video shown it is set to 16 and it's still happening just as much as when it was set to 8.

One thing I noticed was that the normal unity physics engine works fine, however when I enable Contact Solver Stabilization Heuristic it breaks again, so I suppose it might be that? But in that case, how do I fix it? I don't really want to switch to unity physics since it is significantly slower than Havok in my application.

I'm using Unity version 2020.2.3f1.

Video:

 

My bad, I've posted a new, updated thread on there now.