(a) It is a ground for removal from the commission that a member:
(1) does not have at the time of appointment the qualification required by § 35.005(a);
(2) does not maintain during service on the commission the qualification required by § 35.005(a);
(3) violates the prohibition established by § 35.005(b);
(4) is ineligible for membership under § 35.005(c);
(5) cannot, because of illness or disability, discharge the member’s duties for a substantial part of the member’s term; or
(6) is absent from more than half of the regularly scheduled meetings that the member is eligible to attend during a calendar year without an excuse approved by a majority vote of the commission.
(b) The validity of an action of the commission is not affected by the fact that it is taken when a ground for removal of a commission member exists.