MATLAB: Pulley with two hanging masses

SimscapeSimscape Multibodysimulink

Hello all,
I have been trying to simulate the classic physics problem: a pulley with two hanging masses. I am not sure which part did I messed up, but even though I set the weight for the two masses significantly different, the slipping does not occur, and the body just swings left and right, but not one up one down as expected.
I have uploaded my simulink document below. I should also state that I am using gravity in the -Y direction.
Any help would be greatly appreciated!

Best Answer

See comment and attachment above.