GMOMW0018E Field {0} that redefines field {1} could not be processed because redefines group member {2} has already been processed for service name: service_name.
or
Field {0} that redefines field {1} could not be processed because redefines group member {2} has already been processed for service name: service_name, API name: api_name, API operation: api_operation.

Explanation

Another REDEFINES group member has been processed.

Programmer response

Correct the JSON to specify at most one redefining field per redefined item. Use different services, one for each REDEFINES group, to ensure the correct values in correct data types are passed through.