Relaxing joints in script

Hiya,

I have rigidbodies that are attached to each other with sometimes multiple ConfigurableJoints. I am trying to tweak the joint forces and torques to create a balance.

I am changing the joint motions and angularmotions from Locked to Free in script and am finding that this doesn't actually change the forces and torques. The values change to Free and I can see it in the Editor, just it has no effect on the forces.

I have tried extensively, waking up Rigidbodies, making FixedUpdate waits between the changes, changing first to Limited then to Free, having FixedUpdate waits in between. So far I have found nothing that will at least consistently produce the expected result.

The only thing I have found that actually will change the forces is changing the ConfigurableJoint motion and angularmotion values manually in Editor. This seems like a bug why it doesn't work from script.

Any ideas appreciated.