Shot some football under the lights tonight and had the white balance changing with every photo. Sometimes the photo would be half warm and half cool! I tried every auto white balance setting and several preset ones and no difference. I slowed my burst rate from 10 to 5 and no difference. Even single shots were changing. I thought maybe the green field? So I shot people in the crowd, no difference. Finally I lowered the iso down and at 3200 andless the problem went away. Seem to have no control above 3200. Here are some undited examples. These are from the same burst. The first pair recorded WB 5050 and the second pair was 3800