Greetings all - noob here. I know there have been previous threads on this issue, but the consensus of all of them was that you *can* build this thing if you get it right. So, what am I doing wrong, please:

My faction has Scholars and Civics, so I have both Knowledge and Civics at the start. (In case it is relevant, they also have Altarian Blood, Enchanters, Legacy of Serrane, Masterwork Chainmail and No Ranged Weapons.)

My sovereign is a Scholar, Water Apprentice and Life Apprentice. (In case relevant, other traits are Wealthy, Cowardly, Attunement and Brilliant.)

I found my first village on the first turn, set taxes to 0, put the sovereign inside to reduce unrest, cast Inspiration and Sovereign's Call, and Produce Research.

As far as I can tell, this is the fastest way to research Trading. It takes eight turns on a 4/3/2 tile (it initially says 10 turns, but the village upgrades to a town after five turns and the additional research shaves two turns off).

I have tried this several times, using a variety of different game settings and opponents (including only a single Novice opponent who does not start with Civics or Scholars). I have also varied traits (e.g. in case there is some sort of mutual exclusivity with Legacy of Serrane.) I am never, ever offered the opportunity to build this wonder. 

If it isn't obvious what I'm doing wrong, could someone else try the faction/sovereign designs above and let me know if they can build it. 

This is v1.6 btw

Many thanks in advance for any tips - this is the best game I've discovered since MoM!

CC