I'm consistently getting this blue and orange image buzz on the edges of metal.

Shot at f6.3 ISO 125 1/200 with AB 600 at 1/32 directly above through diffused beauty dish.

Is this just from general overexposure or some other aberration? When I down stop exposure in RAW LRoom the blue is still there. I guess if there's any in camera settings help and LightRoom advice that'd be great! Thanks in advance from a newbie.

1:1 crop