Over the last few months I have ditched all the Corsair Software I can. The only bit I use now is the Corsair Integrated USB Bridge. Even that has problems, but you need it to communicate with the H100i. If you don't need flashing disco lights then SIV64 is far better solution than the Corsair offering.
It is harder to set up, but once done, its a way more stable and you can set fan speeds as you please. The guy who monitors the Corsair support site developed it and has produced manuals and examples for use on the Corsair site.
The Corsair software was broken for weeks and left me with free running fans, and no way to control them. Corsair don't seem to understand that the cooling system is way more important than disco lights. So I made the change a few months ago. I don't think I will be forgiving them for it either. In future, I will buy from companies that specialize in cooling and take it seriously!