(1) An act or a decision of the Council is not invalid merely because of—
(a) a defect or irregularity in, or in connection with, the appointment of a member; or
(b) a vacancy in the membership of the Council, including a vacancy arising from the failure to appoint an original member.
(2) Anything done by or in relation to a person purporting to act as chairperson is not invalid merely because—
(a) the occasion for the appointment had not arisen; or
(b) there was a defect or irregularity in relation to the appointment; or
(c) the appointment had ceased to have effect.