Greetings,

while playing the Rebel Realm level of the Chronicles of Tandria, I think I've encountered some kind of bug.

The only thing left for me is gathering stuff for the declaration of independence. To speed up the process, I demolished my Export Office in one of the zones before the great wall, and rebuilt it in the big one behind the wall (logistics). However, even though fully upgraded again, the resources just keep sitting in the export office, nothing is happening. No traders go deliver it, and I'm not on any other kind of trading mission, nor am I training traders.
At the same time, the game is stuttering quite badly; I'm getting a small freeze around every 2-3 seconds. But, when I cancel the delivery for the quest, everything's fine again.

I thought this might be because I traded for some extra coins, or because of the relocating, but even though I built another export office, one on a slightly different place in the zone behind the wall, and when that didn't work, one back in the zone before the wall, but alas, that didn't work either. I'm still getting the stuttering.

This has never happened to me in any other mission/quest/multiplayer, so I'm thinking it's mission-specific.

So, I'm now stuck on the last quest, I can't finish the chronicles of Tandria. A solution would be appreciated