Cannot get webinars from before February 2025 to appear

Hi LouiseB, welcome to the community.

From an initial review of your account I see that it was created in October 2024, so that is the earliest your could have held any webinars. Each webinar Organizer account has their own webinar history, but the Admin of your account can view Admin Analytics across all of the Organizers on the account for a complete picture.