You do have to click the "Gather" or "Ore" buttons in the guide for them to be drawn. It would be nice to have another way to show those.
Are you using an addon that changes the tooltips of a mining or herb node? The node name is pulled from the first line of the tooltip.
You would have to edit the ["NXGather"] section of the saved variables Carbonite.lua file to remove the test node or wait until we add some delete node type of feature.