why linear MPC is not tracking the reference value? when I changed OV constraint and reference both for the same system

For the MPC controller, I have given the reference value and OV constraint (e.g,7), both are equal. It worked. and I tried by changing the reference value to 9, then also it gave me the same OV(means 7). I thought that because constraint on OV, it is giving the same OV value.

And then I tried by changing the both reference and OV values to 9, The system has the feedback path, still MPC gave me the previous OV value(i.e;7). what could be the reason? please suggest me.

Thank you in advance

[Image Analyst]

"what should I chnage?" <=== Maybe try changing your question here.

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[Emmanouil Tzorakoleftherakis]

A simple reproduction example would help

[Sarala Gurijala]

@Image Analyst thank you for your suggestion