when you head into the GRE Tunnel the first time to look for Waltz, you can see the model of him standing somewhere in the middle of the tunnel just doing nothing. I suppose he stands close to the location he spawns in the Cutscene with the PKs. After the scene, its gone. I saw it in my own session and with a friend in coop. (played the mission twice to see both outcomes of the story)
happened on the newest patch yesterday night in normal games and I forgot to take a screenshot both times🤦♂️.
Did not open a ticket, because of the lack of proof and it does not affect my game.