Good that you managed to get it working, though it is weird that it required restarting the editor. I’m not at home and cannot currently check the toolkit, but I believe there are three different tilemaps: one containing all walls, one containing all floors and one containing both. I think the third one is tilemap base. In any case, the one containing everything is the one I used to make the entire dungeon, so I knew how it would look with both walls and floor tiles in place. I then made two duplicates: one where I removed all the walls and one where I removed all floor tiles. Then I made the one with just the floor tiles block path trace and the one with only walls to have thicker collision boxes (pointing up towards the camera) and block range trace, so that walls would block visibility. I kept the base tile map in case I needed to go back to it for any reason, but it does not serve any real purpose in the finished toolkit.