Click in to the Session that you want to change that Icon for:
Click Update Icon
Click Browse and upload the desired Logo. Select that logo, and click Done.
You'll then see a preview of the Logo. Click Save.
That Logo "Icon" will be in the video space for Sessions that do not have anything, as well as in the Icon on the Session.
If you have any other questions on streaming, please reach out to your dedicated Event Success Manager or review other help articles in our: