My Profoto light flashes more than once per image captured. Why?

When shooting with Auto exposure, Profoto Camera analyses one or more pre-flashes from the Profoto light in order to determine the exposure for a correctly exposed subject. If you prefer a faster workflow, you can capture the first image with Auto exposure and then switch to Manual exposure. You then keep the exposure and flash power from the image captured with Auto exposure, and the Profoto light will only flash once per image. With Manual exposure, you can also finetune the exposure or flash power if needed.