Update: Ended up restarting the editor, same issue. Removed all walls, then tried moving one of my cone brushes into this area and they became distorted as well. I thought one of them had some odd breakage because some faces were floating a couple units away and there was a hole in the mesh. This turned out being two brushes too close together. Once I deleted both brushes, I was able to add all new brushes for walls and ramps, no issue… This is really strange, I mean I even tried overlapping two cone brushes again this time and no problem. Problem is solved for now but I think this may be a problem that will occur again, perhaps you guys are already aware of the issue and it will be fixed in the next update?