Pitstop acrobat layers

[kaiserwilhelm]

Can I delete spot colors that are no longer being used?
Imagine I have spots A, B, C. I run an EAL called "B" that selects A, B, C, then does a NOT on B. Now, it deletes the colors.
However, even after save they remain in the output preview

 

[Stephen Marsh]

Have you tried saving and closing the PDF and then opening it up again?

Stephen Marsh