2 physics worlds

Hi,

I need to predict the time to cover a distance in one body so I have 2 scene managers and 1 physics world attached to each of them.

If I use applyForce/Impulse (with enableActivationState()) with both worlds enabled, it doesn't work. But if I disable the world in charge of simulating, applyForce works again for the main world.

Is OgreBullet doing something internally that causes the problem when it exists two physics worlds?

feel free to say if need some other information

Thanks in advance