OK, been trying to get this going, and so far looks good except for one major problem. The script runs, is searches, etc. it finds nodes, it runs to the nodes, but when it gets there, it does not harvest them. The current target arrow blinks on my character for a second, and then it starts looking for another node. I have the hotkeys set to 0, as I wanted to run it allowing it to use /useability initially, since most of my keys are set, and I would rather not change them. So, I have not tried with hotkeys in a hotbar....but if this is what I msut do, I will. Would greatly appreciate some input on getting it working the other way though.
Thanks for the great work.
OK- I have now tried it using it with hotkeys set-up and I get the same result.

I never see the node actually get targeted, so I am assuming that's the problem, but I'm missing why. The log is showing "unharvestable node" for each one it runs to. Hopefully someone can tell me what to look at.
I apologize...I didn't quite look long enough. Figured out the issues. It's now working like a champ.