ragdoll spawn flies up into air instead of staying still

I am instantiating a bunch of clone models with ragdoll applied, and they all fly into the sky and don’t really drop, even though gravity is applied. It looks like they start out in sort of the same space and then quickly go whizzing through the air. Any help?

I’ve seen at least one case where overlapping colliders (arms and body, say) caused a “flying ragdoll.” Adjusting the collider sizes fixed that case.

What happens is, the physics system sees two things overlapping. It thinks they just hit really hard and applies force to fling them apart. But then the joints come into play and it all gets dragged together.