I make a zoom animation for the earth and I found a bug for the DCW summarized in the following commands. When the horizon of the projection is 6.1 (or lower) the outside area of Argentina is painted.
gmt begin DCW_BUG png
gmt coast -Rd -JG-65/-30/6.1/5 -EAR+grosybrown2+p -Sdodgerblue2 -Da -W1/ -N2 -Bg
gmt coast -Rd -JG-65/-30/6.2/5 -EAR+grosybrown2+p -Sdodgerblue2 -Da -W1/ -N2 -Bg -Xw
gmt end
I make a zoom animation for the earth and I found a bug for the DCW summarized in the following commands. When the horizon of the projection is 6.1 (or lower) the outside area of Argentina is painted.