So out of the blue this faction sends me a peace offering, lets end this war, I can agree or refuse like normal. The issue is, I wasn't at war with this faction, or any faction at all, and hadn't ever gone to war yet that game. That AI was close to me and I had Trade, Economic and NAP treaties with them, none of which were canceled after I agreed to end the non-existent war with them.
Possibly unrelated, but happening that same turn my Treasury Vault finished, seemingly several turns ahead of schedule (though I wasn't paying that much attention to the timetable), and I got no world wonder pop-up window about it. Perhaps because I had a peace offering window pop-up that overwrote it, or perhaps completing the wonder in question calls up the wrong window? Usually I don't build the vault, because usually I don't build towns, so I haven't noticed before now if anything was wrong with it.
