[SOLVED] Can't enable right side buttons on my Corsair M55 RGB Pro mouse ?

This mouse is ambidextrous. I'm a rightie, so the left buttons on the mouse (default) work, they're the ones on my thumb. But the two on the other side don't work even when I've checked "enable all side buttons" in corsair iCUE. I want to use all 4 side buttons for grenades in CSGO. Suggestions?