Color and marker type not correct

Why on Earth would the following code produce the attached figure (the figure I attached is the second one; the first has the same incorrect colors and marker shapes)??

point_types = ['rd', 'y^', 'gs', 'bo', 'kv'];
figure
hold on
for i = 1:5
    scatter(all_data(yy_idx == i, 1), all_data(yy_idx == i, 2),...
        point_types(i), 'filled');
end
hold off

figure
hold on
for i = 1:5
    scatter(all_data(km_idx == i, 1), all_data(km_idx == i, 2),...
        point_types(i), 'filled');
end
hold off

[Ben]

Never mind, I figured it out; Matlab was just making a big string instead of an array of strings, so I had to change it to a cell array.