Gw udh ngikutin cara lu yg ubah ke 16:9 trus ubah lagi ke full screen tetep gak bisa cuyI found another solution! It's little bit tricky but actually works!
Go to menu (on the bottom right) -> setting -> display -> screen size
Change to 16:9 then restart the game, if doesn't work change back to fullscreen and restart again
Sorry for my bad English