Cookies...
Cookies don't seem to be working at all for me on Chrome 55.0.2883.87 m (64-bit). Upon visiting the site, entering my user code, and selecting columns, I can see that the cookies are being written (with a Chrome extension) but upon closing Chrome and revisiting the site, all previous cookies are gone and replaced with new ones, as if I had never visited the site or if I was using incognito mode (I'm not).