Nice mouse, rubbish software. If I reboot after a windows update for example the bong sound of somthing disconnecting sounds on windows 10 log on and side buttons stop working. The only way to fix this is to fully shut down the machine and then boot and buttons magically work again.
I have been on to Corsair support and they said to do a soft reset (power up mouse with both buttons pressed) and to manually upload mouse firmware to the mouse after pressing the reset pin hole with a paper clip. Neither of which work.
I suspect the Corsair driver is not loading on reboot for some reason but trying to get this through to Corsair support is proving difficult.