Act of the committee not to be invalid by defect, vacancy, etc

No act done or proceeding taken under this Act or the rules made thereunder by the Committee shall be invalidated merely by reason of — (a) any vacancy or defect in the constitution of the Committee; or (b) any defect or irregularity in nomination of any person as a member thereof; or (c) any defect or irregularity in such act or proceeding not affecting the merits of the case.