Lumetri Curves doesn't work

Tried it on Windows 14.2 then just upgraded to 14.3 still doesn't work.  Notice the before (CC, 1 attached) and after photos (CC,2)

attached.  When you select a point in any of the Lumetri Creative Curves add a simple 1 pt dot in HUE vs SATURATION and the screen display and output monitor turn to digital noise.  The footage this happened on was Z-Cam ProResLT 4K.  I checked on an older project -GH5 mpeg4 long gop 4k 100mbps 8bit- and the same exact thing happened.  I trashed preferences (alt + restart) and nothing was resolved. 

The only difference ithe 2 screen grabs is the single point in the yellow on the Hue vs Sat Curve.  If I add more points the problem persists, If I delete all points the image clears up perfectly similar to CC,1 image.  I should also note that I did update Nvidea drivers to 451.48 with a release date of yesterday.

Thoughts?