Contradiction with Matthew 26:58
Peter follows Jesus to see the end, while Luke 22:55 depicts him sitting and mingling with others, potentially out of fear of being caught.
Matthew 26:58: Now the chief priests, and elders, and all the council, sought false witness against Jesus, to put him to death;
Contradiction with Mark 14:54
Peter warms himself by the fire with servants, contrasting with Luke 22:55 where he appears to merely mix with the crowd, suggesting an act of hiding his identity.
Mark 14:54: And Peter followed him afar off, even into the palace of the high priest: and he sat with the servants, and warmed himself at the fire.
Contradiction with John 18:18
Peter is described as standing with others around a fire, hinting at fitting in, contradictory to the impression in Luke 22:55 that suggests he's just observing.
John 18:18: And the servants and officers stood there, who had made a fire of coals; for it was cold: and they warmed themselves: and Peter stood with them, and warmed himself.
Contradiction with Matthew 26:69-70
Contradicts by the involvement of a maid recognizing Peter, whereas in Luke 22:55, his presence in the crowd is non-descriptive of immediate recognition.
Matthew 26:69-70: But he denied before [them] all, saying, I know not what thou sayest.