Hello I have completed many Games and have done what the trophy want to have but it didn't pop up and on the trophy menu the game says I don't have the trophy is it a bug ? 

List of trophy's I didn't can get: 

1. Polymath 

Research every Technology in a single game 

2. Nerdopolis 

Produce at least 1000 Science per turn in a city 

3. Landstalker 

Finish a game possessing at least half the territories 

4. One True Faith 

Lead a religion which 8 or more Empires follow