Chips and cracks can make an item less robust and create sharp edges. The original dishwasher-safe marking does not necessarily establish that a damaged item remains suitable.
Understanding this situation
Heat, water and handling can affect existing damage, and fragments may be difficult to see among other dishes. A new breakage should not automatically be treated as a machine fault without considering the item's condition.
A useful next step
Inspect dishes before loading and follow their maker's guidance. Handle fragments only when the machine is safe and avoid blind searches. Stop using damaged items that pose a hazard rather than repeatedly washing them to test durability.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.