(methodDefinition-measurementSystem) is present (value) times but only 1 instance is recommended
ISO IEC 23003-4 (DRC):methodDefinition: Not explicitly forbidden but recommended practice to ensure consistent behavior across different implementations
measurementSystem
ISO IEC 23003-4:
Configure or update the encoder in order to set only 1 instance of methodDefinition-measurementSystem, then reencode the content.