I have encountered the exact same problem from this post:
http://www.shsforums...remy-spawn-bug/
I explored the area of dragon during Chapter 4 or 5. (for returning Samuel and killing a couple of gibberings)
After finishing Ferium quest, I got talks from her uncle, Otho, dawn priest, the Morninglord and the guy busy moving. (all journal entries are shown correctly.)
Then I finished the Dark One quest without Jet'laya.
Otho's hammer is still not ready yet so I go straight to Nashkel.
The problem is that after talking to the kid outside Nashkel Inn, the mayor assistant Jeremy never appears in the inn.
The difference from the above thread is that I didn't install Dark Horizon. I installed a bunch of mods from Big World Setup (stable).
Furthermore, I suspect there is a problem with the area of the inn as it sometimes plays the battle music without any enemies.
I tried spawning Jeremy with CLUA, but then Strongblade never comes up after I accept the quest even if I waited more than several minutes.