When using the color grading tool after adding 3rd Party LUTs. A diagonal white artifact (upper left corner to lower right)appears. It becomes more visible as I adjust sliders. I run Windows 10 with Intel Graphics (I7 with laptop built in Intel UHD Graphics video adapter). Prior to recent update it would only appear when I used LUTS on the output. Now in build 424 it appears on the input LUTSas well. The included Autolooks LUTS cause the artifact in the output position of the color grading tools, but when used in the Autolooks FX plugin on a clip, there is no artifact. Thanks in advance.