When creating an Azure Managed Instance for Apache Cassandra, I'm getting below internal error, with no additonal information
"statusMessage": "{\"error\":{\"code\":\"GatewayAuthenticationFailed\",\"message\":\"Gateway authentication failed for 'Microsoft.DocumentDB'. Diagnostic information: timestamp '20220216T125740Z', tracking id 'f8b6fd57-c384-47fb-969d-9cdd8ac2478c', request correlation id 'f8b6fd57-c384-47fb-969d-9cdd8ac2478c'.\"}}"
Instance is being created in a valid region, and required permissions have been also granted