Yeah first time for me it didnt open, but at second time ( dont remember if i restarted or not, or first load up profile) it worked. In settings u chosing skills manually or loading default for ur class.
I have done what you did a few times. I am trying to click the settings button in the main tab. I assume its different from the settings tab on the top. I just want the bot to vendor whatever it picks up and not use the stash at all.