Check both targets, the selected compartment and any special mode. Wiping a shared touch panel can alter more than the number currently visible.
What the observation tells you
A control lock may help only if the manual provides one, and it is not electrical isolation. Moisture should not enter the panel. If the interface behaves erratically after cleaning, repeated pressing can hide the initial sequence.
A useful next step
Use the prescribed cleaning and drying method, then restore the documented normal settings. Record persistent display problems and protect both chilled and frozen food while the condition is assessed.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.