Please note for T2 owners these boards don't work. For some reason the left flipper is recognized as the right and so on. So the dot matrix mini game works in reverse.
Can you elaborate a little more please - does T2 use a different version of WPC or what makes it different?
I believe Rottendog flipped a couple pins on a connector erroneously. I believe it's the one that feeds the 4n25 optocouplers on the driver board - in such a way that the right flipper button triggers the left optocoupler and vice versa