Terrain issue deleting actors

I created a terrain with geo control and it imports fine looks good but if i try and explore after hitting the play button i get to a point and the game stops. ive noticed that if i shoot at a cube like the ones from the 3rd person map, it will tumble down the hill then disappear and in the world outliner it comes up with actor deleted. is there a volume im not seeing the KZ is set low i think to -1500, but even so if i walk in the opposite direction the same happens. its like there is an invisible cube around a certain area.
Any help appreciated
cheers

How large is your landscape? :slight_smile: