Hey, I'd like to help you out with the error you're experiencing. If you could just let me know when you encountered the error message, I might be able to get to the root of the problem.
Yep, you can utilize every passive with every build to make a broken character. I really want players to have fun experimenting with different combinations. If it seems like something is too powerful, don't worry, I'll balance it out in the future.
I'm not quite sure what you mean by "stalemate" though. I've used counter before and haven't encountered any bugs. You can message me about it so that I'm sure it's not a bug.