Stop treating the material as ordinary lint. A failed seam can release substantial filling that requires the appliance's appropriate cleaning or assessment before more laundry is processed.
Understanding this situation
Let the machine stop only through safe documented controls and allow any necessary cooling. Do not reach into a hot moving drum or push debris through perforations to clear the visible surface.
A useful next step
When safe, identify the damaged item and report any unusual sound, smell or programme warning. Use only owner-maintenance steps approved for the model. Repair or replace the textile before any future permitted wash-and-dry treatment.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.