Yes, it is an open shade AWB issue. It is in the photos. I should have checked that first. The C-500R was with me too. There will be no more open shade shots without using it. The last time I had seen that in open shade, there was a lot of foliage in the shot and I figured it was due to the shrubbery.
Scott Chapin Powder Springs, GA, USA Nikonians Team Member