Disruption with creation of fine grained personal access tokens

This incident has been resolved.

We identified the source of the issue affecting creation of fine-grained personal access tokens and have applied a mitigation. Users should now be able to create new fine-grained tokens successfully. We are continuing to monitor to confirm full recovery.

The degradation has been mitigated. We are monitoring to ensure stability.

We are investigating reports of users being unable to create fine-grained Personal Access Tokens. Attempting to create a new token redirects the user back to the token overview page without an error message, but the token was not created.

We are investigating reports of impacted performance for some GitHub services.