I had experienced the double click bug after only 2 weeks of owning the M65. The next day and for about two weeks after that, it seemed to be functioning perfectly.
Yesterday, the issues has returned... and today it is still present.
I must say, that as someone that has been eagerly awaiting the RGB keyboards and mice and seeing them getting delayed for over 6 months due to apparent testing or quality control issues... I'm feeling rather let down.
The keyboard light effects freeze if the caps lock is hit (sometimes just once, sometimes if hit more than once in short succession) and then this so called, precise gaming mouse, doing random double clicks is giving me issues whilst I'm trying to get Uni work done (Photoshop especially)... and to think I was actually looking at other Corsair products for my next PC build... if this is the quality that can be expected across your products, I may have to go back to the other brands.
So the mouse has hardware issues and the keyboard software issues (even though both share the same software)... Judging by the last message, it may not even be worth getting a replacement M65 -_-