I think there is an omission in the DLL code included in the beta SDK.
The serialized CvArchaeologyData type now has uiVersion = 2 in saves made by the beta patched BNW, with an extra int value. But the DLL code still gives uiversion = 1 and no new data, unless I'm missing something.
File is at CvGameCoreSource\CvGameCoreDLL_Expansion2\CvPlot.cpp. Starts around line #118
The serialized CvArchaeologyData type now has uiVersion = 2 in saves made by the beta patched BNW, with an extra int value. But the DLL code still gives uiversion = 1 and no new data, unless I'm missing something.
File is at CvGameCoreSource\CvGameCoreDLL_Expansion2\CvPlot.cpp. Starts around line #118