Residual moisture and food residue can create odour and hygiene problems while the cabinet is unused. Drying is part of the model's shutdown procedure, not merely a cosmetic finishing step.
What the observation tells you
A closed lid may trap damp conditions, but the safe door arrangement must follow the instructions and account for children or an unattended property. Hidden food beneath a basket can also be missed during emptying.
A useful next step
Remove all contents, clean and dry permitted surfaces, isolate as directed and secure the appliance appropriately. Follow the documented restart process when bringing it back into use.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.