Hi @Nic Tuff,
To help scope this down, could you provide a bit more information?
- Does this happen for all webinars or only this specific webinar?
- Have you tested this with a newly created webinar to see if the behavior is the same?
- Could you also share a screenshot of the Meeting access settings configured for this webinar (found under the webinar meeting options)?
- Specifically, are your settings configured similarly to the example below, where "Who can bypass the lobby?" is set to "Only organizers and co-organizers" and the options for dial-in users and registered attendees bypassing the lobby are turned off?

Sorry for asking a lot of questions, but these details will help determine whether this is related to the webinar configuration, attendee permissions, or a specific event setup.
Thank you again for your time and understanding. I really appreciate your patience, and I’m here to help. Looking forward to your response.