Companions aren't bantering?

Repost from BSN:

I’m glad for this thread. Something feels off for me. It’s definitely not a lot of banter; it’s hard to say specifically but I’d guess that over the 60–70 h played, I’m probably somewhere around two to three dozen dialogues—and I switch my party around pretty consistently.

It’s certainly not every few minutes, or even every half hour.

I haven’t noticed a huge variance by region. I basically never use a mount. (It’s not timer triggered off dismounts is it? )

Of characters, I’d say that Sera initiates conspicuously more banters than anyone. It could be that as much as half of mine have been with her. (Realization: that’s probably why I like having her around so much. She feels more alive than the rest, aside from her personality?)

PC, English. I have all subtitles on. I play with headphones so it seems unlikely that I’d just not hear it.

ETA: Does anyone with this problem have a twitch or similar that has/would record gameplay? I don’t know if it’d be useful for debugging. I’m also happy to stream if someone from BW wants to watch, let me know and I’ll find the time.