Use local injection instead. Basically take SpecialK64.dll and copy/paste it to the game folder where its executable resides (it’s an Unreal Engine 4 game, so it’s usually in a subfolder as the executable in the main folder is only a dummy launcher), and name it as dxgi.dll and hopefully it’ll work.
Although looking more into the game, it would seem that it might use some form of anti-cheat nowadays which is likely what’s preventing the injection. We make no guarantees regarding the use of Special K in anti-cheat protected games, as we have no way of affecting the behavior of those products.
So in general, we recommend not using Special K (both local and global injection) in titles where anti-cheat protections might exists.