Custom stick troubleshooting help

Okay, so I got my stick put together tonight, madcatz PCB with sanwa parts. Everything worked great for about a half hour and then the B button stopped working. So I ran the wires to a different button to test that button, still nothing. So I’d assume it’s the connection to the board, but whats weird is, if I change the game to have medium kick set to say, right trigger, it still won’t work. I re-ran the wire to the screw terminal that leads to the board but is this a sure sign that the B button’s connection from the board to the terminal is bad? Just seems odd that even set to a different button the medium kick input wont work. Would a bad B button connection to the board cause that?