Honghuang: Enforcer of the Heavenly Court

Yang Jian shouldn't have come out so late, right? Logically speaking, Yang Jian came out during the Conferred Gods List, and then became the God of Justice, and then Sun Wukong caused havoc in the Heavenly Palace. Why is it that Yang Jian here beats Sun Wukong for a while, but doesn't learn from his master for a while? Or is there one with the same name? 🧐