The "known problem" is that some early releases of the docking connectors had been put together with slightly-less-than-optimum crimps on the pins connected to the wires. This resulted in some of the wires pulling out of the connector during installation.

If you are having a L/R balance problem, it is true that wiring issues might be the cause. But carefully check all wiring, not just the docking connector. Also, it could be the amplifier or the signal cables. Make sure to check everything. You did play with the balance and the fader already, right?

___________
Tony Fabris