Like I have my games and dlcs but that's all. I tried to reconnect my Steam account and get some achievements in Endless Space 2 but they are still not registered on the badge. I also claimed free dlcs and Endless Space from my Amplitude account but it didn't changed anything. I'm out of ideas on how to get it to work properly. 

Is your Steam profile public or private? The syncing only works if it is set to public.