Issues with cognos themes and extensions

[Archi]

Hi,

I am trying to set a theme in cognos analytics 11.1.7 but I am getting an error message which says "the theme is unavailable to set globally. Log in as the tenanted administrator to set it". Not sure why this is happening as I am using system administrator account which should ideally allow me to set themes globally.

Also, there is an issue with extensions. When I set an extension, the changes are only reflected in system admin's user profile and not a normal user's profile. Are there certain capabilities associated with themes and extensions?

Please let me know. This is important as we do rebranding using themes and extensions.

Thanks,

Archi