Do you realize that the “TTC” click block (whatever it is called) may be faulty, like it is in my mouse. The right one works but the left click does not work and the “towers” on the outermost shell are not worn at all. It is the failure of the “click block” that has “TTC” and “29” on top of it and a tiny white button that makes a clicking sound but does not work. Is there a way to replace it? Probably not, would be my guess. (Corrected post)
