Board Thread:Light and War Update/@comment-3285816-20130730162524/@comment-9946604-20130730215343

I'll do a bug report later, but as far as we know, when you try to buy big light (and possibly big war, untested yet) before you've bought regular light, it won't build. It also costs no money and disappears when you reload.

And yes, it seems to only be the PC version.

As far as bugs go, this one isn't really a big deal.