Illustrator 23 (2019) Appearance of Black and Rich Black

Upon release of AI 2019, Rich Blacks (CMYK Black Builds) appear on screen the same as my 100% Black (K), where as before it would appropriately show the lighter tone of the 100% K black with a much darker Black Build (60,60,60,100)

Note: The toggle for "Appearance of Black -> Display Accurately" is the same as before, it just does not display properly anymore.

Yes, I am in CMYK Color Mode. Yes, opacity is normal. All Preview Modes. And yes, AI 2018 did display correctly with the same file(s).

I copied the same files over to Photoshop in CMYK Setting and the blacks appear properly.

Thanks for forwarding this on to the developers.