Not sure about this bug, but in a recent game I saw Cardith Lorda with a Radiant Gaurd a dozen turns before Empyrean was founded. No idea how it came about...
Not sure if its a bug but...
Wetlands block river commerce boost?
AKA, a wetlands along a river is a 2 food 0 hammer 0 commerce tile?!
Shouldnt it be a 2 0 1?... >.>
Edit: I realise now, thats due to how deep jungles got tweaked, isnt it?
@Xienwolf: You probably know that, but options have to be declared in XML and in the SDK. If you don't add the SDK part correctly, weird stuff happens. A option is displayed as off, but really isn't or the other way around. Had this problem in the past.