my plot uses 3 symbols and 3 colors. The color in the front isoverlapping the color in the back. What is causing this?

my plot has 3 curves with symbols and colors. The first color is red with a circle, 2nd color is green with a square, and third color is blue with a triangle. The triangle symbol curve(blue) overlaps the red curve and the red color shows through triangle. It is not filled in. I tried using drawnow to fix this to no avail. Can anyone help with this problem ASAP plz !!!!

Answer 1

[Thorsten]

plot(..., 'MarkerFaceColor', 'w')