Don't know if it's related to version 2.0 beta2 but it looks like AI isn't researching anything in the transhuman era; it's more than 20 turns in my current game that AI isn't researching anything...
EDIT: Attached is the relevant savegame; as you can see from the Diplomatic Advisor (Techs), there are a lot of undiscovered techs for AIs, but they cannot research those techs; looks like they've got stuck somewhere, unable to research anything else.
Moreover you can see in the victory screen (I'm using mastery victory) that there are absurd and even negative % of culture (-775%, 1208%), a bug probably related to the resource problem we were talking about earlier.
Edit2: if you're asking why I'm in "Jan 1962" it's because I'm testing with different gamespeed.xml modified by me on normal speed only to see if it's possible to match techs with the correct (more or less) year in which those techs were discovered; this isn't influencing the bugs we are speaking about; the same bugs happen with the standard gamespeed.xml
Edit3: it looks like loading in MaxComp makes all the wrong resources numbers disappear; I hope some of these hints are helpful...