End users not seeing the option "Select Brand" from PowerPoint Copilot

Hello

I have followed the instructions in this guide https://learn.microsoft.com/en-us/microsoft-365/copilot/enterprise-brand-manager 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.com

2. Created a Brand Kit ( https://m365.cloud.microsoft > Waffle Menu > Create > More... > Brand Kits. Ensured it's published adn Official)

3. Brand kit is published and Official, see below

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I have tested this on over three different users via PowerPoint.Cloud.Microsoft and desktop app

All of these users have Copilot Premium licenses for more than a few months!

MY EXPERIENCE

I seem to be the only user that has this option "Seelct Brand";

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END USER EXPERIENCE

This is what the end user within the same tenancy, and is deffo logged into their business account;

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End users can access the Official Branding Kit;

This is becoming very frustrating and shoud just work!

Please help