If you name a file Endo2_A_U_.gan, then SemiRandom will see it internally as Endo2_U_A_N_PLN_.gan because it is actually converting the file name tags into a terrain value. Normal (N) and Plain (PLN) have a value of 0 in Dominions maps so they are implicit.
I will look again at a workaround for this tonight and will consider using the numeric portion of the file name. Haven't thought it through yet and I have to get to work.
