Swiftby

I literally had this same problem myself. I had all my fans spinning just fine before, but not at full speed. I installed TT RGB PLUS and the MOMENT I DID my 140s stopped spinning. All three of them. I have no idea how to bring them back. They still glow. I get error of "Controller #2 Error". This isn't just your controller. Something in the software is messing up the fans.