It's hard to awnser this question with this info.
I ran the bot yday with my aggro shaman with positive winrate, with the latest updates, so I can atleast confirm the bot it doing what it should do.
More importantly if the information on what specific misplays you see happening that didn't happen before. combined with logs.
If i have to awsner the question based on this information, i would say; just bad luck.