There have been several bug fixes for the no banter bug, but I still get about 1 conversation an hour, or sometimes none at all. My sound in general is kinda glitchy, with delayed sounds or ambient music overlapping. Though I'm still playing on a file I started before the bug fix was released, I don't know it that makes any difference. I'm glad for all the people for whom the bug was fixed, but kinda bitter it's only gotten worse for me :/ Do you think you or your followers could help?
Well, for starters if you are playing on a file before the fixes this can be a problem. I don’t exactly know why, but it is a problem my friend has had to the point they still cannot finish a Western Approach mission that has long since been fixed in that particular playthrough.
A workaround for the glitch that may work and I had work for me before the fixes, so hopefully it will work for you. Again I have no idea why, but try going through you Journal (and maybe your Codex) and make sure all the quest notifications are read/gone. In other words, make sure none of you quests (completed or in-progress) and codices have the glowing golden dot next to them. Once I went through and did this (before the fix), my completed quests all ran across the screen and then instantly after I got several banters in a row.
That said, maybe someone else can help with any other workarounds or fixes? I would recommend, trying/creating a second playthrough to see if this is isolated to only that file though.