Try another mouse on your PC and try this mouse on another PC. Then you know if it's the mouse or your PC.
If it's the mouse, buy a new one. If it's your PC check the mouse settings in Config panel.
I have noticed that I can no longer middle click with my mouse, but can still scroll. I would normally just trouble shoot online, but I was unable to find any posts concerning a working scroll but a broken click (even after going as far as the fourth page of google results). Does anyone know what could have happened or any troubleshooting I can do? My mouse is clean and hasn't ever been dropped so I don't think it's the hardware.
To clarify, the mouse I am using is the commander/talon esports combo.