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I found a couple things and fixed what I could access. For one you had gmaps, instead of gmaps= in server ops. That I fixed.

The other thing is your gmap can't have a mix of .graal and .nw levels. You should also maybe rename your levels to start with dg_ for ease in naming. Lastly you have a gmap made that includes 4 levels but only 2 are uploaded. Because of that I couldn't tell if you were starting upper left and going to lower right in the listing process.