With respect to blue light on a missing video: No idea.
With respect to others seeing blue light: If the "birthing" referred to by Ra includes the leaving of the womb by the baby and if some people, such as my Reiki teacher, can actually see energy as colored light, then it's possible that someone might see such energy during birthing as blue light.
With respect to others seeing blue light: If the "birthing" referred to by Ra includes the leaving of the womb by the baby and if some people, such as my Reiki teacher, can actually see energy as colored light, then it's possible that someone might see such energy during birthing as blue light.