Vacancy not to invalidate proceedings of the Authority

No act or proceeding of the Authority shall be invalidated merely by reason of-

1. (a) any vacancy in, or any defect in the constitution of the Authority; or
2. (b) any defect in the appointment of a person acting as a member of the Authority; or
3. (c) any irregularity in the procedure of the Authority not affecting the merits of the case.