Parameterization feature of ADE-XL does not work with Schematic Pcells

Hello, 

I am using  ICADV12.3-64b.500.17 

and I am trying to parametrize a design using the variables and parameters window in ADE-XL, and I am facing two different issues

I noticed that sweeping some parameters simply didn't work, by investigating the netlist I saw that although the swept parameters are set correctly at the begining of the netlist it is not passed to the device instant, in my case this problem was specific to schematic Pcells (ex. a Pcell which generates stacked devices) , so when sweeping the parameter number_of_series_devices in the PCell the structure of the underlying schematic needs to be re-evaluated but this is not happening 

additionally, I noticed in general that any parameter which is modified in the parent schematic Pcell is not passed to the underlying Pcell even if it is not affecting the structure