U2723QE, white uniformity issue, #2

Hello,

I have the same problem. I use the 27 4k u2723qe at a different location and only a few times when I "work from home" it alway feels a bit off but I just thought an ultrasharp you cant go wrong. Today I took it to my main resident and put it beside my U3421WE it was not even close the white on the ultrasharp is matching my cintiq HD. Can any Dell support tech please help? I did factory reset and change cable and ports no dice. I updated nvidia driver and tried 8bit and 10 bit. all no dice.
 

thanks

-k