Chaos Machine?

All changes are always posted in this thread and CM rates haven't been changed since the start, they're exactly as described in here. Now just because you didn't failed 4 items before it doesn't mean something suddently changed or went wrong so no, the rates have not been lowered and there isn't anything that can be or get messed up about that. As always, it all comes down to the algorithm and your own luck as there is no such thing as predicting the result or getting some guaranteed value out of it, plenty of similar threads and discussions on every server's forum as well as in the webzen forum.