Objects hover after a few minutes

Hi,
I am trying to use MogreNewt to create a sceneeditor kind of tool
I am using Ogrestudio (which has Newton 1.53) with Newton. I have enabled gravity and initially for a few minutes all objects fall properly. But later it just hovers where it is placed.
Any idea what could the issue?

Thanks in advance,
CCC

Maybe you placed them outside world limits

Hi,
Thanks for your time & response.
I extended my world to +/- 100,000 and it works.

I ran into another issue -
When I drag an object and drop it, it falls on other objects and collides correctly.
But if I attempt to force a collision by dragging an object (by clicking & dragging, without releasing) then the object which I have dragged, penetrates other objects and does not collide with other objects.
I have added force using a callback but this does not work.
Please note that I am using compound objects created with convex hull objects which I created by convex decomposition using John Ratcliff's app.

Again, any idea/pointer would be very helpful.
Please let me know if any other details are required. Is this possible using Newton?

Thanks again,
CCC