Everything is in the title, after a few months of very limited use, the left click is down. Known issue on the internet, it is the micro switch which presents rebounds, poorly filtered by the firmware of the mouse. Probably design problem, but will make this clear to the customer service ...
All this is very unfortunate, this little mouse was convenient and really has no equivalent.
The Logitech driver always has a delay notch in terms of design and functionality. But blah, it's OK ...