I had this bug in two different games, I shared the map with another AI and the natural wonder discovery attribution became wrong. Two different things :

- When the AI discovers a natural wonder I received a message telling me that I am the first to discover this wonder and I receive fame for that.

- When I create an outpost on the territory of wonders I discovered by myself and before I signed anything with the AI, it creates a claim to this AI about the fact that I stole "his" natural wonder.

Step to reproduce : Discover natural wonders, sign a treaty with an AI before building an outpost on the wonder's territory.