Unable to remove or edit items from Sidebar Visual Editor

I am having an issue with the sidebar navigation visual editor. I cannot remove items from my sidebar menu. Even when I select "Clear All" and GoNative Sidebar Visual Editor shows no menu items in the list, the simulator still shows menu items from previous builds. It seems like any changes made in the builder are appended to the previous build, with no way to remove them once they are added.

Please help I am stuck.

-Dave