This is a bug we are working very hard to kill. If you are having this issue you can do one of two things:
1 - Uncheck "Bake in 3DO". DDO will generate substitutes for the maps in Photoshop.
2 - (Optional) Bake the unchecked maps in a third party application, xNormal for instance, and plug them into the slots. This is only needed for more advanced control however.
Tags: 3DO, Numbered Tiles, Bake, Error,