A combined appliance has functions that may not all be exercised during wash-only. Normal washing therefore does not confirm every aspect of drying performance or safety.
Understanding this situation
The reverse also applies: a warm drying stage does not prove that washing and rinsing completed properly. Keep the functions and the actual observations separate when discussing a fault.
A useful next step
Report the first changed stage and any warnings. Do not continue using one mode where an unresolved leak, trip, overheating or burning symptom could affect the shared machine. Obtain advice on safe suitability before further operation.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.