Access Issue: Copilot Agent Kit for Makers, Users cant access through Microsoft security group

Copilot Agent Kit for Makers where users granted access through a Microsoft security group can access the application, but cannot see your organization's custom templates within the Agent Library. If i individually assign the user then they are able to see it.

Few more things 

Both the security group and individually assigned users have the Basic User and CSK - Maker roles.

The issue occurs when access is provided through the security group, while direct user assignment works.

The same security group works as expected for access to the customer's Copilot Studio agents.