One other issue that I’ve noticed with the footer layout and responsive layout in general is an issue with a window size range. It appears that in the 1392px to 1171px range the sides are cuttoff in the view port, such as the footer left box its chopped at bit as well as the right side body text. Apparently my clients view port size is in that range.

It looks like if I have the 4 footer areas filled it causes the problem, 3 works fine like your demo version.