US Appeals Court acts "out of sync" with the Supreme Court in refusing to vacate international arbitration award under the FAA’s ‘exceeding powers’ ground

Can an international arbitration award be set aside on a ground not explicitly contained in Article V of the New York Convention?

This is the question the United States Court of Appeals for the Eleventh Circuit sought to answer in Corporacion AIC SA v Hidroeléctrica Santa Rita SA on 27 May 2022.