PICade On/Off Button Light

Hi, I hope someone out there can help.

I have just purchased and built a couple of picade consoles, build is good apart from the on/off button light. I built the first console, the light worked initially but now won’t work, before I built my second console I tested the 2nd light by splitting off the lighting wire from the button wire and it worked, hit the button and one and the light came on on the other, however, when I built up the console and back to using a single button for the button and light the light doesn’t work.

The wiring / connectors are really close together, is there a chance that these connectors have touched each other and blown the bulbs - that is what I think I have here. Or, is there something else I am missing.

Thanks in advance for any advice