My companions started acting weird. They enter combat, stop combat, then enter combat again. Complete with combat dialogue which makes this particularly annoying.
I tried to have them wait, be passive, and ultimately to leave to Lucky 38.
Then I got back to fetch them. But as I entered Lucky 38's Casino floor, the guard robots entered combat and said "Engaging target". I thought they were going to attack me, but they were friendly and just rolled at the walls and stopped there.
In Presidential Suite, all my companions were doing the same thing. Raul kept repeating "Let's dance!" while Veronica ran from room to room. Boone kept wielding and holstering his machete.