Pressure angle analysis with circular cam

Hi,when with Mechanism I run a pressure angle analysis for a simple circular cam with an eccentric follower, the result is always 0.Instead, it should yield a constant value other than 0.Could someone please explain why Creo provides this incorrect result?Am I doing something wrong?🤔If cam radius is 150mm and follower eccentricity is 100mm, pressure angle should be approximately 41.8 degrees, not zero.Thank you all for your time and help!

Gigi