Mississippi Code Title 11. Civil Practice and Procedure § 11-3-37

In all cases, civil and criminal, a judgment or decree appealed from may be affirmed as to some of the appellants and be reversed as to others; and one of several appellants shall not be entitled to a judgment of reversal because of an error in the judgment or decree against another, not affecting his rights in the case. And when a judgment or decree shall be affirmed as to some of the appellants and be reversed as to others, the case shall thereafter be proceeded with, so far as necessary, as if the separate suits had been begun and prosecuted; and execution of the judgment of affirmance may be had accordingly. Costs may be adjudged in such cases as the supreme court shall deem proper.