Hi!
Got it to work. My misstake, i have a 3 screen setup in portrait and when troubleshooting it, i disabled the other 2 and used only 1 screen, but still in portrait. When i landscaped it and used its native 1920x1080p res the game starts in fullscreen and works. I have seen many surround setups that bms is working on but only landscape configs. Thx for the engagement, helping me with this problem. Seems like bms cant span over 3 screens in portrait with a res of 3400x1920 with nvidia surround. SoftTH may work.