Problem with pop-up menu in gui

Hello world, I've been using GUIDE for making guis for a short time. I have a major problem when I delete elements from a pop-up menu, as it disappears for absolutely no reason, although the cell that is being used for pop-up menu population, still has one last element. I've read about pop-up menus and their problem with empty Values, however that's not the case, because the there is still one string element. Any ideas please?? I have attached the file, so anyone can see. Thank you all!

[Ben11]

I'm afraid you haven't attached anything.

[Joseph Cheng]

duplicate submission

http://www.mathworks.com/matlabcentral/answers/181552-problem-with-pop-up-menu-in-gui

[Jan]

Duplicate submission removed.

Answer 1

[Adam]

Popup menus disappear when you delete elements if the 'Value' is set to be larger than the number of elements in the list - e.g. if the final element of the list was the one selected and then you delete one. I suspect that is what is wrong in your case.