Just a quick question: is there a limit to the Import Image's size? I have a 464x256 image that I used for converting down an already-made tileset to 8x8 tiles for ease of use, and I noticed that some tiles don't seem to be included in the Output Images.
The image in question: 
Edit: I found a workaround, in which I split up the image to smaller images, combined the outputs, and ran it through again, and got this: 
