Razer Cortex not launching Total War Warhammer 2

Hello, For the last few days Razer Cortex not launching Total War Warhammer 2, it isn't launching any of the total war games, either on my standard desktop or the cortex gaming desktop (which is what I usually use) I've tried re installing I've tried uninstalling and then re installing I've tried deleting the game and manually adding it back I've synced my steam account Nothing works. When I try to launch the game it boosts then I get a black screen with the mouse showing and nothing more. I can launch the games through steam no problem. Tom