Hi Im making a rather large map and I am being bombarded with about 20-30 leaks along with an error. The error I am recieving is: "MAX_MAP_VISIBILITY EXCEEDED". I have searched and tried to increase the _blocksize to any low to high power of 2 digits with no luck. I have gone through every area of the map and detailed as many brushes and such as I deem to be possible. I have tried caulking the outside to my best efforts. The leaks I recieve are similar the: "Entity 500: Brush 0" Now when I try to delete this entity, the error remains and the map just chooses another entity. If I keep deleting them, it just never quite stops. It constantly selects another entity. So I figured my map must be leaking, right? Yet I cant find any red lines that usually indicate where the leakage is happening which is usually the case... I don't even know where to start! I make an entire caulk box around the whole map, select the inside, then invert it. There's a ton of brushes and such that get marked... Does that mean all of these are being leaked? That was my asumption. So I make an entire box around the entire map on all 3 cameras in the 2D view, hollow it with caulk. Then I select the inside, and invert it yet again. Yet the same brushes and such get marked again... If it was a leak, shouldnt that huge box have covered it? What can possibly be causing this? Help!