Turn signal, brake lights and cluster stopped working while driving?

We were driving it home, all gauges, the brake lights, and turn signal stopped working. Taillights and hazards still work, headlights, interior lights and the actual gauge cluster lights work. Next day we tried to start it to go buy fuses, but it wouldn’t turn over. Towed it to our local mechanic, and he swapped the computer for a junk yard one and replaced all the bad fuses, and it started again. Told me I’d need to replace or repair the cluster. So, I went to pull apart and got a cluster, and surprise: didn’t fix it. I don’t know what else to try and is there something else wrong that caused all of it to go bad? Or just coincidence
Ford focus 2005 zx4 SES