Illustrator dosent show difference in previwe mode - between 100% black and 40 30 30 100 Black

Report · Sep 13, 2024

Hi, Illustrator stopped showing difference in black in preview mode.

Between 100% black and 40 30 30 100 Black there is no difference!

Did anyone else noticed it is very urgent matter to us it happened on all 4 users accounts.

It is a urgent matter - please fix this!

Report · Sep 13, 2024

Are your Preferences > Appearance of Black set like this?

Report · Sep 13, 2024

Hi, thanks for the reply - I have the correct settings its only a problem with the newest version I reverted to 28,6 and there is no problem.

Report · Sep 13, 2024

This is in a CMYK doc in version 28.7.1, with your rich black definition and 100K:

Which version are you using?

Report · Sep 13, 2024

We are using the same version 28.7.1 and this bug showed up few days ago with the update,

It works fine on 28.6

Do you have a color mode set to CMYK and most important in separation window overprint preview checked on?

Kind Regards

Report · Sep 13, 2024

Preview works fine in 28.7.1, but Overprint Preview should also show the difference.

Looks like Overprint Preview is broken in showing the difference between normal and rich black.

Can you report it here:

and post the link to the bug so others can vote?

Report · Sep 13, 2024

Hi, I have reported this bug:

Report · Sep 13, 2024

Thanks, voted.

Report · Sep 13, 2024

With overprint preview on you're right. Compared with 27.9.1:

Report · Sep 18, 2024

Per favore risolvete questo problema, per il mio lavoro è fondamentale!

Preciso anche che il nero 100% in overprint su altri colori non viene vizualizzato corretamente (vedi allegato)

Report · Sep 18, 2024

This is a user forum, we cannot solve bugs. The only way to help solve the problem is to vote and describe it on UserVoice.

Report · Sep 18, 2024

I'm experiencing the exact same issue.
Illustrator has become useless when it comes to correctly previewing work being prepared for printing.