End users not seeing the option "Select Brand" from PowerPoint Copilot | Microsoft Community Hub (opens in new tab)

HelloI have followed the instructions in this guide to push out a brand kit to end users, however very frustratingly, users do not have access to the "Select Brand" option within PowerPoint Copilot setting (i.e. PowerPoint.Cloud.Microsoft web instance) Steps i performed over a week ago!1- Enabled enterprise Brand Manager policy - Config.office.com2. Created a Brand Kit ( > Waffle Menu > Create > More... > Brand Kits. Ensured it's published adn Official)3. Brand kit is published and Official, ...