Judgment of the General Court (Fourth Chamber) of 13 October 2021.#Erik Simpson v Council of the European Union.#Appeal – Civil service – Officials – Refusal of the Council to reclassify the person concerned, after he passed an open competition, at the grade laid down in the competition notice – Dismissal of the action on the merits – Appeal – Judgment set aside – Appeal judgment reviewed by the Court of Justice and set aside – Referral back to the General Court as the appeal court – Obligation to state grounds – Equal treatment.#Case T-646/16 P RENV-RX.