So did the gig where you have to steal footage from the Maelstrom gang for a detectives case, turns out it's really a cover for him killing someone. Well I choose to beat him up and keep the tape. When ever you go to the Malted Iguana Liquors bar to meet the Fixer he's there, when you walk in he starts to notice you like enemy AI do whilst also trying to start an interaction with you. He starts combat shooting you the only way to fight back is by running out ans shooting back, because while in the bar you can't draw your weapon. So you can't talk to him or the fixer.
I have this same problem for over a month now. Even if I kill him lethally he respawns soon as I take a few steps away outside the bar. Also if I kill him (lethal or non-lethal) and go in the bar, my gun is auto-holstered and can not be drawn, I am unable to attack or defend myself but there are some gangsters in the far back booth of the bar that automatically agro and start shooting at me inside the bar also.
To make matters worse, either Aaron, the gangsters or myself can easilly make the other patrons of the bar skittish, and they panic and run outside pausing several times like their AI is confused, then at least one of them will go outside and stand right in the doorway of the bar and cower down in fear waving their hands over their head. When this happens there is no way to exit the bar because the NPC is blocking the only way out. I can't draw my weapon and shoot the NPC or do anything to make them move, and attempting to try to jump doesn't work either, then I get killed by the 2 unkillable gang members from the far back booth.
I ended up having to reload a save game from before I went into the bar and just avoid going into that bar or ever talking to the fixer in there again until CDPR fixes this in a future patch hopefully.
Location:
Broken auto-respawning Aaron: