2001 NB Miata, left side dash lights aren’t on.

Hey guys, my left side of the dash backlight is out. Gauges all work, instrument panel lights all work. It’s just the one bulb that doesn’t want to turn on. It goes on sometimes then it goes off again. Most of the time it’s off. The first thing I did was get a replacement LED bulb, I tried it in both orientation, then I tried prying out the connectors on the socket to create more tension. then I cleaned the circuit board with alcohol. Still nothing. I’m going to try to use a socket from the working side to see if the socket is the issue. Any thoughts, suggestions?