Not sure if anyone else has experienced this, but here is my PS4 bug:
Once I kill the boss in Junktown, I expected to watch a cut scene. Instead, he dies, then I got a blue screen with a white circle where the lift’s highlight was. Then the characters go mental - “He’s going to blow…”, Red Monika arrives, yadda yadda. Once that cut scene was over, it returned me to the game.
An odd one, and I have had no trouble playing the game since.