Azure Artifact Signing certificate profile creation is failing.

Details:

I am unable to create an Azure Artifact Signing certificate profile. Identity validation is Completed, but both Public Trust and Public Trust Test certificate profiles fail shortly after creation.

Setup:

Service: Azure Artifact Signing

Region: East US

SKU: Basic

Resource provider: Microsoft.CodeSigning is Registered

Identity validation: Individual / Public, Completed

RBAC confirmed: Owner, Artifact Signing Identity Verifier, and Artifact Signing Certificate Profile Signer

Subscription type: Azure Plan / paid subscription

Issue:

Creating a certificate profile is accepted by Azure, but the profile enters Failed state shortly afterward. This happens for both Public Trust and Public Trust Test profiles.

Activity Log error:

Operation: Microsoft.CodeSigning/codeSigningAccounts/certificateProfiles/write

Error code: ResourceOperationFailure

Detail code: UnknownError

Message: The resource operation completed with terminal provisioning state 'Failed'.

Portal message: Some error occurred.

Troubleshooting already completed:

Confirmed Microsoft.CodeSigning is Registered

Confirmed identity validation is Completed

Confirmed required RBAC roles are assigned

Tried both Public Trust and Public Trust Test profile types

Tried multiple unique profile names

Profile creation still fails consistently

This appears to be a backend provisioning failure rather than an RBAC, provider registration, or identity validation issue. Can Microsoft Artifact Signing engineering investigate this failure pattern? I can provide correlation IDs privately if needed.