aescripts + aeplugins

Have an issue where I have been trying to add a new button to an existing toolbar I created but it won't save the effect parameter. For example, if I want to create a Hue Saturation button, go through all the steps, either cut and paste the effect or do a get effect name and "ADBE HUE SATURATION" goes in the parameter field. All good, now when I click to another button or just close out and come back the parameter is missing. The toolbar will also give a warning that there is no command for the button. I thought maybe my old toolbar was corrupt so I created a new one. Did one button and it worked so I continued to rebuild my toolbar from scratch. Saved the first 7 effects but the last 6 or so have now stopped saving parameters again.