We are cleaning up an old client site, and I see that structure closes the tag halfway down our list of articles. The end result is that half of the page looks like this: https://dl.dropboxusercontent.com/spa/auu99oc6z1dn54z/8c2bknqf.png
When I inspect the code, I see that Structure, after a certain amount of entries, just closes the ul tag. https://dl.dropboxusercontent.com/spa/auu99oc6z1dn54z/nvto40_h.png
Has anyone encountered this previously?