Wilting can reflect the food's age, packaging and humidity conditions as well as storage temperature. It is a reason to review storage, not a reliable diagnosis of a cooling fault.
What the observation tells you
Different produce behaves differently, particularly when loose items are exposed to circulating air. A drawer intended for moisture-sensitive foods may require a particular setting. Comparing old unpackaged leaves with newly purchased sealed produce does not isolate the appliance as the cause.
A useful next step
Follow product and drawer instructions, check dates and measure the fridge temperature properly. If several foods show an unusual change at the same time, record that pattern. Food whose safety is uncertain still needs appropriate food-safety guidance.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.