I played through most of the game in 2010, then did some stuff mid-end 2011. Had 100% achievements.
Now I wanted to go for the You Monsters ones and "Supreme Strategist" which was added without me noticing it.
But all my medals except ~6 (probably the ones I did 2011) are gone and I don't appear in map specific leaderboards. It's like I never played the campaign.
Did I miss something like a leaderboard reset?
I don't really feel like earning 150 golden medals again when I already had quite a few of them.