How can I change Cd parameter of a local restriction for Gas Systems during a simulation run?

I am working on a pipe system in the Gas System environment offered in Simscape. I would like to change, as the simulation is running, the Discharge Coefficient (Cd) parameter, in the Variable Local Restriction Block. I have tried to set in my model the default parameter behavior as "Tunable": set_param('MyModel','DefaultParameterBehavior','Tunable').

In the Variable Local Restriction Mask, I change the option from "Compile-Time" to "Run-Time", and then set the Cd parameter for example to 0.4 by using set_param:

set_param('MyModel/PipeSystem/Valve1','Cd','0.4')

However the simulations outputs during the run are unaffected.

I checked the parameter readability by typing in the command window:

para=get_param('MyModel/PipeSystem/Valve1','ObjectParameters')

And saw that in the field "Cd" under 'Attributes' there is 'read-write' and 'link-istance'. So it appears that the parameter should be updated without having to recompile the model.

Any suggestion on what I might be overlooking?

Thanks in advance!

Sam