Functional Links and chain commands

Note: chain commands are simply onSuccess/ onFailure -> new command (within Inflexion UI Express tool... Events)

Okay, so I have defined a function link in Module Definition file (XML)

<links>
<link linkPrefix="myLevelLink" linkType="functionSync"/>
</links>

I want to keep it simple for now, so no parameters are required.

In Inflexion UI express, I have a button on the root.Template.
In default layout I have specified onPress event to link to node://
this works fine.

I have then specified on link success... new link to "myLevelLink://"

THIS DOES NOT WORK.

so when I run the application in Debug mode, I never reach the function

public int executeLink_myLevelLink() {

     /*
      What I want to do is update 8 instances of the same component using 8 float fields.
      this is completed through IFXI_RequestFieldRefresh() function... but can't get this to work either
     */

}

What am I doing wrong?

Many Thanks,
Andrew