Welcome aboard
I barely skim over FX now and then but I did recognize you. I had the same thing happen to my first US 2.5 but I scratched the burnt stuff off and soldered to the trace. Works great for well over a year. Since then I've used the same cheapy iron on another US, MR, PC and CF with out any problems I couldn't easily fix. My bad was I wasn't cleaning and tinning my tip properly.
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