Operating system and graphics card
NVidia GeForce GT 750M 1024 MB
Broken: 2.73a bbf09d9
Short description of error
Inside the blend there is a plane to simulate the floor and an object that when the physics simulate the rigid body, it automatically flips the object and the simulates the rigidbody physics. What this object is flipped at the beginning?
Exact steps for others to reproduce the error
Just press shift+a-key to simulate physics.
Based on a (as simple as possible) attached .blend file with minimum amount of steps