Hi King,
Thank you for posting your query on Microsoft Q&A.
Based on your description, it seems you lost access to your Microsoft Entra ID resources after converting your account to a guest in another directory, which causes permission limitations.
In Microsoft Entra ID, when a user is converted or invited as a guest in an external tenant, permissions and roles from the original tenant do not transfer. Guest users have restricted access compared to member users, which can result in inability to access subscriptions or resources, even if they appear in tools like Azure CLI.
Please follow these steps to resolve the issue:
Restore Member Access: Your account needs to be restored as a member user in the original Microsoft Entra ID tenant with the necessary access roles. This is typically done by your tenant’s Global Administrator.
Verify Tenant and Login Context: Ensure you are logged into the correct Microsoft Entra ID tenant in the portal. Use the directory switcher near your profile to verify you are in the right tenant context.
Request Role Assignment: Contact your organization’s Global Administrator in Microsoft Entra ID to assign you appropriate roles (such as Owner, Contributor) on subscriptions and resources.
Please refer to:
Elevate access to manage all Azure subscriptions and management groups | Microsoft Learn
How to troubleshoot sign-in errors - Microsoft Entra ID | Microsoft Learn
Convert external users to internal users (Preview) - Microsoft Entra ID | Microsoft Learn
Please click "Accept as Answer" if this resolves your issue. This will help others with similar challenges find the solution.