I have had a Logitech G600 and a Corsair Scimitar that have both had issues in the past. The G600 had the switch outright die and the scimitar developed inconsistent scrolling (also super stiff and hard to middle click anyway).
I do a lot of web browsing and RuneScape, which uses the middle mouse button to move the mouse and I tend to rebind the DPI buttons under the wheel to the middle mouse button to compensate.
It may be inherently flawed, but we can’t just arbitrarily emit wavelengths of light with current technology. Realistically I doubt we ever could, we would need to alter the emission energies of materials on the fly, which would be akin to actual magic. It is frankly amazing it works as well as it does notwithstanding.