A fresh smell does not show that the cause of an odour has been removed. Only feed citrus or any other food when your model permits it, and do not use an unsuitable load as a cleaning experiment.
What the observation tells you
Residue around an approved removable baffle, retained food and a drainage problem need different attention. Masking the smell can delay noticing which area is affected. A large quantity of peel may also exceed the normal feeding guidance.
A useful next step
Carry out the manufacturer's cleaning routine and note whether the smell returns with use or when the sink stands idle. Share that pattern if further assessment is required.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.