I think I've found a bug in G&K and uploaded a save. If you conquer a civ with a religion, it appears that religion does not show up in beliefs or religion lists.
Specifically in the save: Greece had founded Buddhism but Buddhism is not in any lists. You can, however see it exists in several cities in the world. Basically I know nothing about what buddhism and dont appear to have a way of finding out.
This is in the latest G&K on steam with Vanilla + G&K only. WinXP DirectX 9 (dont think that matters).
Specifically in the save: Greece had founded Buddhism but Buddhism is not in any lists. You can, however see it exists in several cities in the world. Basically I know nothing about what buddhism and dont appear to have a way of finding out.
This is in the latest G&K on steam with Vanilla + G&K only. WinXP DirectX 9 (dont think that matters).