Only use the machine's documented add-laundry or pause function if the model provides one and indicates that opening is permitted. A paused drum does not by itself mean the door is safe to open.
Understanding this situation
The machine can retain water or heat even while it is not moving. Locks may remain engaged for that reason, and the permission to add an item can change as the programme advances. Forcing the handle or using an emergency release as a routine convenience risks leakage, damage or contact with hot contents.
A useful next step
Check the displayed instruction and the manual before requesting a pause. If the model will not permit opening, save the extra garment for another load. When the handle feels loose or the door fails to lock after ordinary use, leave the appliance unused and describe what happened; do not hold the door closed to make a cycle start.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.