TOB Sarevok Dialogs Not Firing

[grogerson]

As the title says, I've reached and pretty much done Amkethran (except Balthazar), and not one banter or dialog with [CHARNAME] has triggered. He's been in the party since I first arrived in the Pocket Plane. How long should it take for them to start? Is there a known problem with one of the BG2 Tweaks (such as Banter Accelerator) that could disrupt it? Is there a global I can check?

 

This is only my second playthrough for SOA/TOB (note: Not EE), and I don't recall any dialogs on my first run either.