Question on Matlab m_map with interrupted mollweide projection

I'm trying to plot a global distribution map using the interrupted mollweide projection of M_map.

Anyone knows why I only get the plot on North Pacific? Below is my code and you can find a picture of my plot in this link: https://www.amazon.com/clouddrive/share/nPxPuuJDjZwpxV1pQcrswCMiBmIPcpkVHvmAbknl1tL

Many thanks!

% In order to see all the maps we must undo the axis limits set by m_grid calls:
set(gca,'xlimmode','auto','ylimmode','auto');
Slongs=[-100 43;-75 20; 20 145;43 100;145 295;100 295];
Slats= [  0  90;-90  0;-90   0; 0  90;-90   0;  0  90];
for l=1:6,
 m_proj('mollweide','long',Slongs(l,:),'lat',Slats(l,:));
 m_grid('fontsize',6,'xticklabels',[],'xtick',[-180:30:360],...
        'ytick',[-80:20:80],'yticklabels',[],'linest','-','color','k');
 m_coast('patch',[.6 .6 .6]);
end;
hold on;
[C1, h1] = m_contourf (X, Y, Z, [0:0.005:8], 'LineStyle', 'none' );