If the port plastic has melted then yeah it needs changing but if the plastic is all intact and “stem” and pins all look good then it might be worthwhile checking continuity with a USBC breakout board prior, if all checks out then I’d swap the M92 first.
Thanks a lot. I just checked with a breakout board, and I’m missing continuity on a few pins here and there. I tested the pins in diode mode, and some like V+ are reading 2.8V, which I have a feeling isn’t right 
So that connector is definitely dodgy, I’ll change it first, then I’ll try M92T36. I’ll keep you posted!