Pg. 148 game summary
1. Choose your army
2. Eternal war mission
3. Deployment map, players roll for table half
4. Place fortifications
5. Place terrain
6. Place objectives
7. Determine Warlord traits pg. 111 or codex
8. If you have psychic powers, they generate them now
9. Roll for deployment and who goes first
10. Seize Initiative
That's all the steps before the game starts. Amazing how many people get that wrong.
Daemons have the same issue with rewards which I rolled at the same time as warlord traits pg. 66 daemon codex.
I don't see an issue since the Game Summary breaks it down with Warlord Traits before Psychic Powers .