Curtains can include delicate lining, weights, hooks and finishes that are not apparent from the main fabric. Their drying permission may differ from their washing permission.
Understanding this situation
A large curtain can also require more movement space than its dry weight suggests. The existence of a curtain wash programme does not automatically establish an appropriate machine-drying stage on the same appliance.
A useful next step
Read the complete label and remove fittings only as directed. Use the specified hanging or other finishing method if machine drying is unsuitable. Do not leave curtains in a continuous load merely because the washer accepted the washing selection.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.