Can't see all participants during a Teams meeting

Hi E Mousley,

Welcome to our forum community. Thank you for the posting in our forum community.

Based on your description, can we re-confirm from your side that which client you are accessing for Microsoft Teams? Is it Microsoft Teams web client or desktop client?

We suppose that you are accessing Teams from web client, if so, kindly use different web browser for Microsoft Teams meeting, try to see the issue result. Further, we have found the official information that there are some unsupported browsers for the Microsoft Teams meetings or Teams calling features.

On the other hand, some features are differently works on different browsers for the Microsoft Teams. So, kindly check this thing with different browsers.

Also, if you are using Microsoft Teams on web client, for best experience of the Microsoft Teams features, we would like to suggest you to kindly download and install Microsoft Teams desktop client.

If you need any further information or help, kindly feel free to contact us and provide us some brief information screenshot from your side so that we can further assist you accordingly.

Regards,
Darpan