Cannot set tint percentage to C (cyan) value except by sliding cursor
Illustrator CC 2018
If I want to set the tint value of a CMYK colour to the same percentage as the Cyan number (66 in the example below), my only option is to slide the cursor, because typing the value or raching the value with the keyboard arrows don't work.
This was already an issue with CS6, on both Mac and PC.
Please get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html . Since this is not a generic issue that we can reproduce at our end, we will need someone to look into your machine to figure out what is going on here.
I too have issues with the eyedropper and the Cyan. I'll often use the artboard to eyedropper 'white' as there may be no white objects in the artwork at this point, and the cyan channel is either 0.01% or an empty field