A button that is physically jammed is different from one that the current programme does not permit. Extra pressure can damage its mounting without resolving either situation.
Understanding this situation
Check whether the control feels mechanically different and whether dirt or a spill is visible on the surface. Do not spray fluid into the panel or pry around it. A touch control can also require a different interaction from a mechanical button.
A useful next step
Use the permitted surface-cleaning method with the machine safe. If sticking remains or liquid has entered the controls, arrange assessment before further use. Include which control is affected and whether the display changes when it is pressed normally.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.