Why is it showing "Incorrect" for a Task in "Create Animated Plots with MATLAB" course?

I was doing this task in the new "Create Animated Plots with MATLAB" course. But whenever I ran the code, it showed Incorrect. On closer inspection, I saw that when I ran it manually, the animation ran till x = 7.1 but when the code is executed on clicking "Submit", the animation runs till x is a little less than 7. Why is this happening and how can I complete this task?

Code:

for idx = 1:numel(y)

scatter(x(idx),y(idx),40,'filled')

drawnow

end

Screenshot:

[Walter Roberson]

I wonder if it needs a "hold on" ?

[Aditya Majumdar]

I wrapped the for loop between hold on and hold off - it still showed "Incorrect". Thank you for the help anyways, @Walter Roberson.

[VBBV]

@Aditya Majumdar refesh the task page , and run the task again.