That is true, there are multiple camera people and they cut around alot between them. When i remember correctly they usually released every camera view seperately at one point, maybe earlier shows, not the later ones.these shows seem heavily edited, and maybe pieced together.
All I could find was the official Bang site which Vol 79 is listed in in seperate scenes. 7 scenes in total, coming up to 2 hours 27 minutes and 56 seconds in total. Unfortunately, I saw the full episode of it that was uploaded somewhere but there is not much to see, or atleast not her in the black underwear so who knows where that scene is floating around if there is one.
Another guy on a different forum said that his theory is that perhaps she was romantically attached to one of the strippers, and was there because she was an "extra". She didn't go too far with any of the guys because they were her friends, and that's all. All of a sudden she disappeared, and maybe because of a breakup. Good theory.
It's a god theory and would make sense, but I'm not sure. It would make sense for her behaviour in the first couple episodes. But then we have Vol 79 where she gets way more involved or atleast more than any other before.