Vacancies, Etc., Not to Invalidate Proceeding of Appellate Tribunal.

No act or proceeding of the Appellate Tribunal shall be invalid merely by reason of—

---

(a) any vacancy in, or any defect in the constitution of, the Appellate Tribunal; or

---

(b) any defect in the appointment of a person acting as a Member of the Appellate Tribunal; or

---

(c) any irregularity in the procedure of the Appellate Tribunal not affecting the merits of the case.

---