Contradiction with 1 Kings 22:13-14
1 Kings 22:13-14, similar to 2 Chronicles 18:13, shows Micaiah saying he will only speak what the Lord says, which aligns with 2 Chronicles 18:13 rather than contradicts it.
1 Kings 22:13-14: And the messenger that was gone to call Micaiah spake unto him, saying, Behold now, the words of the prophets [declare] good unto the king with one mouth: let thy word, I pray thee, be like the word of one of them, and speak [that which is] good.