Edit controller setParamNormalized() from host doesn't update UI

I’m thoroughly confused as to how this works. I have loaded the plugin initialized the edit controller and component handler. I get the component callbacks fine but I want to show the UI with a set of saved parameters. I don’t see a clear example of how to do this. Do I need to set a state first ?

Welcome,
how do you load and initialize the plug-in? Do you use the SDK C++ classes or did you write your own code to do this?
A good example on how to load a plug-in is in the validator application.