This library cannot be searched

Hi All

I followed the article below to add organizational fonts to SharePoint as an Organization Asset Library, and it’s working fine:

https://learn.microsoft.com/en-us/sharepoint/support-for-organization-fonts-in-powerpoint-for-the-web

Add-SPOOrgAssetsLibrary -LibraryUrl https://mydomain.sharepoint.com/sites/MyOrgAL/FontLibrary -OrgAssetType OfficeFontLibrary -CdnType Public 
Set-SPOCustomFontCatalog -FontFolder "C:\windows\temp\ttf" -LibraryUrl https://mydomain.sharepoint.com/sites/MyOrgAL/FontLibrary

However, I’m facing an issue when trying to connect the organizational asset library to Copilot. I’m following the instructions in the article below, and I'm encountering an error, even though my SharePoint Online PowerShell module is up to date:

https://learn.microsoft.com/en-us/sharepoint/connect-organizational-asset-libraries-to-copilot

Here’s the command I ran and the error I received: please guide me.

Set-SPOOrgAssetsLibrary -LibraryUrl https://mydomain.sharepoint.com/sites/MyOrgAL/FontLibrary -OrgAssetType OfficeFontLibrary -CopilotSearchable $True

Set-SPOOrgAssetsLibrary : This library cannot be searched by Copilot.

At line:1 char:1
+ Set-SPOOrgAssetsLibrary -LibraryUrl https://mydomain.sharepoint.com ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Set-SPOOrgAssetsLibrary], ServerException
    + FullyQualifiedErrorId : Microsoft.SharePoint.Client.ServerException,Microsoft.Online.SharePoint.PowerShell.SetSPOOrgAssetsLibrary