CST 2010 parameter sweep problem. why it gives incorrect labelling?

what i want to see is the variation of S11 with different parameter value..
but the simulation (as in attachment) shown weird result.
please do assist me, cos this problem delaying my work. thanx

I also want to know how to get the parameter W - arg(S11) curve at the center frequency 10GHz... not for all the frequency band. Thanks.

You could limit the x-axis.

you mean limit the x-axis to [9.9GHz 10.1GHz] ?

I think it needs some template postprocessing