I have just noticed a strange issue with my site.
I have navigation links in a sidebar widget - the problem is the same regardless whether I use the 'Custom Menu' or the 'Pages' widget, so I don't think it's widget related.
Basically, from the homepage, the links for the Homepage and the blog page are active and work. The other page titles appear, but are not active as links - just appear to be static text.
If you navigate to the blog page, then from there the exact same menu becomes fully active.
I have absolutely no idea what's happened to cause this or how to fix it, so any help would be appreciated.
Theme: Papercut 2.5.4