In the blighted village there is the fight with Grukkoh the bugbear and Buthir the ogre, if you open the door of the shed. After the fight, both Astarion and Shadowheart theoretically have something to say (as I know because I had both happen once), but it never happens that these trigger for both of them at the same time/in the same playthrough (Shadowheart complains that you opened the shed; Astarion thinks its funny). It's always only one them who has the 'yellow exclamation mark' over their heads.
I'm wondering why? It seems these mini-conversations can give you more insight into how your companions are thinking, and an opportunity to bond with them, so it seems strange that these scenes are always limited to one companion at a time. Why not have all the possible exclamation marks trigger whenever possible? Possibly a bug?
It seems to me it is intentional. All companions have something...
interesting to say in response to this scene (Bae'zel's in particular -
heh). Any "in-field" scene where a companion has a ! to react to it, that also means that all other companions have lines of their own for that scene. There are game files associated and named for each companion.
The way these dialogues are currently written would make them incompatible for more than one occurring at once because often they are saying the same thing - just in their own way. Or they are spoken in a way to be voicing their opinions to Tav rather than written like party banter. This could change however. Astarion and Shadowheart have joint interjections in the Crusher and Abdirak scenes. They occur within the scene however and aren't reactions.
At the moment, if you really, really want to make sure you hear a companion's lines for a scene, you can dismiss all the other companions right before that scene starts.
If the scene triggers immediately after a fight, you will have to do that fight with only that companion. Which is what I have to do to get a lot of Lae'zel's reaction scenes.
