We are currently working in the Sandbox environment on Authorize.net and started to receive XML errors from the API got getting merchant details. The exception message is as follows: There is an error in XML document (1, 40). getMerchantDetailsResponse xmlns='AnetApi/xml/v1/schema/AnetApiSchema.xsd' was not expected. This wasn't the case a about a week ago. Did something change in the XML that is being returned in the request?