It's not a problem with the software, but of the design of the rig. It is just the way the math works out sometimes. All riggers come across this, and they have their various ways of how to fix it; you have to be creative sometimes. The cluster is actually an invaluable tool that, when used properly, can add a lot of functionality into your rigs very quickly.

It's hard to give any more help as you haven't showed us a screenshot of your rig's hierarchy, or even a link to the scene file. It's therefore pretty close to impossible to help you with a fix.

What you're seeing on the net is not that people don't know how to fix it, it's just people not giving enough information for someone to give a fix However you should know that it's impossible to give a "one-solution-fits-all" for all double transformation issues.