Getting cam derivation values

[Automata_Nathan 0]

Hello,

So my intention is to create dynamic camdics at runtime. In that program I have introduced a feedback to verify the follower position ,velocity and acceleration values are matching with parameters I have given whilst determining the polynomial coefficients. 

I am using the command _getCamFollowingDerivative to get the derivates of the 1st and 2nd order (Velocity and Acceleration values respectively) of the segments.

In one of the segments (4th) I am getting one the velocity values mismatched. I am confused, why am I getting the velocity as incorrect. Please refer to the attachment below