Dear community, 

I’ve got the problem of lens data editor that  the MFE related to the initial state after the parameter values in the lens data editor changed.

I have the values of the specified parameters in three sets (A, B, C) of lens data editor, including thickness, radius of curvature, and eccentricity and tilt of coordinate discontinuations, etc..

I find that the coupling efficiency of B in MFE obtained from A-->B is different from that obtained from A-->C-->B. (After setting the parameters each time, I only performed the operation of refreshing the MFE and did not make any optimization.)

Why do the MFE results corresponding to the change of parameter group B from A and from C be different?

Looking forward to your answer. I really appreciate it!!