Disappearing tilemap when "Commit"ed

Hi there,

I just started to use Unity/2D Toolkit, but I seem to be catching on quickly through trial and error. I've managed to set up a tilemap with 32bit tiles of grass above a plane of equal size of the screen. While it was one hell of a struggle and I still do not understand the reasoning behind why some of the values I had to insert created the desired spite plot, I have successfully laid it out the way I originally intended. This being so, as soon as I hit "Commit" on the tilemap, all of the content I laid out disappears so that it is completely invisible to the camera view and in the editor. If I do not select commit, everything is visible (including a grid that I would also like to get rid of).

Some additional information:

• I'm working with only one layer: Layer 0.

• I've set up a TileMap, TileMap Render Data, Main Camera, and a Backdrop Plane object.

• Tile Properties: Position: 0, 0, 2; Origin: 0, 0, 2; Size: 32, 32, 1. With the Dimensions at: Width: 40; Height:25; PartitionSizeX: 32; PartitionSizeY: 32.

• Latest Version of Unity

• Latest Version of tk2d

Any help would be greatly appreciated.