[Solved] Box Collider lands on its edge after a throw

Hi all! I have a problem with figuring out why my box in some cases lands on the ground after a throw exactly on its edge. In my game player throws a box and then I need to check on what side it lands. I use AddForceAtPosition method of the rigidbody with random force. In most cases everything is ok. But sometimes I have such case:

This box has rigidbody and box collider components:

When it is stuck like this on the edge and being in the play mode I change a mass a little bit in the rigidbody settings my box falls on the side as I expected:

In my code, I can check if I have my box on the edge and I if try to change mass in the code nothing happens.
Is it normal for rigidbody with box collider to land on the edge? How can I make the box fall on the side in such case?

 

So, I solved it by adding small force to make the box fall on one of the sides if it landed on the edge

rb.AddForce(Vector3.down)