Hello from Norway.
For years, I've had the problem that only a Nikon SB-800 flash wakes up on the first image. It has been very annoying but has been solved by taking two photos in a quick order. Flash number two wakes up on the second picture. The batteries on the flash number one burn out faster than flash two, and it's not possible to use my D3200 because it can not be set to take only two pictures. The solution to the problem I found here, with three wires and Pixel TF-322. Thank you very much!
Marten. Two SB-800, some daylight and Nikon D700. Forum.jpg