I was playing co-op with friends starting right after the tutorial ends. We just got to the saloon and jumped right into co-op. Through this period, my hacking post never got unlocked. Every time we got district keys it would unlock the districts for me, but never the hacking post. I finally played solo, and got to the transcendence center where I died and when i reloaded into the saloon it finally let me access the hacking post.

I think you need to add code that unlocks the hacking post for people in co-op that unlock keys there.