ToB Bug - Imoen keeps triggering dialogue

So I have a rather annoying bug in ToB where Imoen comes up to me and triggers a dialogue over, and over.

The dialogue in question has Charname asking Imoen about memories of Spellhold, or whether she worships any god. And when I select one it doesn't appear the next time, so it seems to be repeatable dialogue that pops up periodically (though not every 2 seconds).

First time it triggered after the party got teleported to the Pocket Dimension and did the first challenge. Imoen triggered a dialogue reacting to that encounter and after a while triggered the dialogue in question. I managed to get rid of it by incrementing a global variable I#IMOENTOBPP1 from 2 to 3. It changed from 1 to 2 before and after the dialogue first triggered so I assumed it might indicate which dialogue should trigger and skip to the next one (being 3).
Second time it started triggering after killing Yaga-Shura and having Solar reveal Charname's origins and now it just keeps going regardless of what I do.

It's not voiced whatsoever so I assume it's from a mod, of which I have 4 Imoen related:
Chatty Imoen v1.3
Imoen Romance v3.9
Imoen Friendship v3.3
IEP Extended Banters v5.4 (Imoen "Retrospection" dialogue for BGII: ToB)

The "retrospection" seems like a possibility given the topic of the dialogue, but just a wild guess.