2nd X360-controller doesn't work

[Echyon]

I downloaded the new Dolphin rev 3950, and with the unlimited JIT cache enabled, I can finally get past the first battle in The Subspace Emissary without Dolphin crashing.
But, now a new problem has arised: when I try to attach a second X360-controller, the controls of that controller are irresponsive. This problem didn't exist in previous builds. I've tried all sorts of things with the Wiimote settings, but nothing works. I even tried older plugins. Also, Dolphin crashes when I try to change the Wiimote button mappings for the second controller.

[PodX140]

If all else fails, you could try mapping it manually using the NJoy plugin.