The plating and maker's care instructions matter, not just the utensil shape. Decorative or inherited pieces may require treatment different from everyday dishwasher-safe cutlery.
Understanding this situation
A change in finish can occur without the appliance being faulty, and mixing materials or using an unsuitable detergent may complicate the result. Do not assume every metallic utensil shares the same care limits.
A useful next step
Confirm suitability before loading and follow any separation guidance from the item maker. Use an alternative method for uncertain pieces. Keep the product details and programme if a finish changes rather than repeatedly washing to reverse it.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.