This incident is now resolved.

The fix has been deployed, we continue to monitor this incident for now.

After deploying R215 to the Apisandbox environments, an error has been identified in the WSDL generation. A fix has been created and is currently in the process of being deployed.

This only affects customers who regenerated / downloaded the WSDL after R215 was deployed.

We will provide a follow up update once this fix has been fully deployed. We anticipate this will be completed within the next 20 to 30 minutes.