Can anybody tell me why, when I use a variable from workspace in Simulink, this last variable does not have the same size as the one in workspace?

I have a variable in the workspace from a Simulink model and want to use another Simulink model. My problem is that the variable in the workspace has 200 values and using "From Workspace" block just turns me to new model 125 values. That is, I lose 75 points of the signal, therefore not look anything.

Can anybody help me? thank you very much.