HD settings

i Have the same problem on my MacBook air, have you found the solution yet?  

Hello @georgiaattlesey and @Nck,

Welcome to the Zoom Community! We're glad to have you here.

If the HD settings are grayed out, this means the option has been locked at the group or account level. To make changes, please reach out to your Zoom administrator.
If you are the account owner or an admin, refer to this article for instructions on how to enable HD video.

Let us know if this helps or if you need further assistance.