Hmmmmm. That's odd, just reset my game and the bot for the third time, and now it's working just fine. It seemed before that it stopped right after returning to home, at least that's when i knowticed it. The only thing i have changed between then and now is the CPU Throttle. I am testing it out on my laptop so I throttled it down because it's not so good, but now it's set back to about 70%. I'll keep testing it out, and see what I come up with.
Edit: I also changed the target radius from (nothing) to 40 and this is on the same test that works. I then to 0 and all still seems okay still.
Before when it didn't work I had Herb gathering and resorces selected, but i did not have the pick axe to gather them.