Contradiction with Matthew 27:31
This verse states that after mocking Jesus, they took off the robe, whereas Matthew 27:28 describes putting a scarlet robe on him.
Matthew 27:31: And after that they had mocked him, they took the robe off from him, and put his own raiment on him, and led him away to crucify [him].
Contradiction with John 19:2
This verse mentions a purple robe, contradicting the scarlet robe mentioned in Matthew 27:28.
John 19:2: And the soldiers platted a crown of thorns, and put [it] on his head, and they put on him a purple robe,