I'm using Illustrator CC (22.1).
I have a rectangle that is filled with a spot color. When I give it a gaussian blur, the color changes from a spot to a process build in "Separations Preview".
The "Color" and "Swatches" windows still show that it is spot, it just shows up as process in the "Separations Preview" window.
How do I correct this?
Go to the menu Effect > Document Raster Effects Settings.
At the bottom of the dialog there is an option called Preserve Spot Colours.
Is it turned on or off?
I would like to know if the steps suggested above worked for you, or the issue still persists.
Kindly update the discussion if you need further assistance with it.
I am having a similar issue, and nothing would induce the art (which was created by the last version of Illustrator) to separate correctly. In the end, I created a bitmap TIF of the shadow in question and used that.
are you using the latest version of Illustrator 24.3 (released a couple of days ago)?
It should work properly with that version.