The Agenda for Meetings of the Executive Committee has to be prepared by the Elected Secretary, unless as is typically the case that role has been delegated by the Owners Corporation under the terms of a Strata Management Agency Agreement where the Strata Manager has that responsibility, and where in both instances the Agenda has to be distributed to all Owners at least 72 hours in advance of the Meeting’s planned commencement, and the Minutes similarly distributed within 7 days of its conclusion.
If you did not received the Minutes and/or presumably the Minutes then you’ve missed out on two counts, both as an Owner and as an E/C Member, but as I note from your other post you’ve already applied to the NSW Civil & Administrative Tribunal (NCAT) for the compulsory appointment of a Strata Manager, perhaps add this to your justifications.
Tread carefully though, as a NCAT appointed Strata Manager will act strictly in the terms of their appointment, that will be by-the-book and not necessarily in the present best interests of the Owners Corporation.