When saving a figure with 'print', not all of the figure is saved

I create a figure of a geometric shape with custom major and minor grid lines, thickened axes lines, and shading. I save using

print('dtiff','-r500','TEST')

everything saves except for the thickened major axes. I create the thickened major axes by drawing a line using the code

plot3([c(1,2) c(1,2)],[c(2,1) c(2,1)],[c(3,1) c(3,2)],'k','LineWidth',4)

What is happening? The attached images are how it should look, and how it is actually turning out after saving.

[Joshua]

ignore the different shading.

Answer 1

[nl2605]

I am not so sure, but are you passing the handles of the plot or the axes? That may be one reason. Also, out of curosity what is this '-r500'?