Contradiction with 1 Corinthians 14:33
God is not the author of confusion, contradicting the consensus in Acts 15:22 indicating clarity and unity.
1 Corinthians 14:33: For God is not [the author] of confusion, but of peace, as in all churches of the saints. [confusion: Gr. tumult, or, unquietness]
Contradiction with 1 Corinthians 1:10
Encourages no divisions and being perfectly joined together, which contrasts with the need for agreement in Acts 15:22 hinting at prior division.
1 Corinthians 1:10: Now I beseech you, brethren, by the name of our Lord Jesus Christ, that ye all speak the same thing, and [that] there be no divisions among you; but [that] ye be perfectly joined together in the same mind and in the same judgment. [divisions: Gr. schisms]