Speaking of bugged CZs, I've come across a couple recently such as this one in which all NPCs, both friendly and enemy, just stand around doing nothing:
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The enemy ones will fire at me if I come in sight but won't run towards me or run anywhere else. Also I'll get no "assist" kills by shooting at enemies together with my NPC teammates because I have to go hunting for the enemies that are just standing around all by myself.
Another problem I've had is the Vulture dropship arrived above the CZ but didn't drop anyone out and just sat there, so I exited to the main menu, then went back in, but found myself on-foot on the planet out in the middle of nowhere somewhere, with the CZ nowhere to be seen so I had to exit, then go back in Horizons which put me back in my ship in the departing station...