Title says it all. I created a schematic that will simply print a log when the Machine Object collides with a second object. The machine object is dynamic and the other one is static. I ticked the collision enter tick box. As they collide nothing happened. I'm pretty sure that they are colliding because the Machine Object ended up rolling on the surface of the second object.
I do hope that I simply had a misinterpretation and it is not a bug. Cheers! Apologies for posting too much