Hi,
I ran into a problem where TileMap colliders were not working. After some investigation I discovered that my TileMap layers were reverting back to Layer = 'Default' after being edited and re-committed.
I need the ability to set the TileMap Layer and it's corresponding Tile Map Render Data + children layers all to Layer = 'Walls' to fine control collision behavior. Any chance this will be fixed soon.
I am using 2D Toolkit v1.91 beta 1 with Unity v4.0.1f2.
Thanks,
hemdanw