I did it on WTT. Some people have reported that it can be bugged on the current BotB build. One person activated the Beta and loaded his last save and was credited with the achievement. Worth trying. You can activate the Beta patch, load your game, maybe get the achievement and deactivate the Beta, if you don't want the Beta patch. Note that the Beta is a significant boost for Hardly Anything Sevres as it reduces the time on a lot of focuses.
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I did it on WTT. Some people have reported that it can be bugged on the current BotB build. One person activated the Beta and loaded his last save and was credited with the achievement. Worth trying. You can activate the Beta patch, load your game, maybe get the achievement and deactivate the Beta, if you don't want the Beta patch. Note that the Beta is a significant boost for Hardly Anything Sevres as it reduces the time on a lot of focuses.
I just replayed it with the Beta patch and what I noticed was that after the EEE takes over, I lose the decision to make "Greater Greece" and even after I do the Double headed eagle national focus, the decision to restore Byzantium doesn't pop up. I'm out of ideas at this point and it's getting tiring. I got the DLC to restore Byzantium and I can't do that one thing.