Update to Illustrator v 28.7.1 suddenly made black a rich black in Overprint Preview (Mac OS)

Question

Hello all - the latest update to Illustrator v 28.7.1 has made black to appear as a rich black when Overprint Preview is turned on. Because of this, I can't see if the black is overprinting and makes trapping a lot more difficult. It's weird because if I change the black to 99%, it acts as normal and shows the trap/overprint - screen shots are attached. I am running Mac OS 14.6.1 on an Apple M3 Pro Chip - MacBook Pro - 14" - 2023 Nov. 2023 model. All the normal things were tried and nothing is fixing it (Apperance of Black, Edit - Color Settings). Does anyone have any ideas on how to fix this?

Ton Frederiks · Accepted Answer

It is a known problem, see: https://illustrator.uservoice.com/forums/601447-illustrator-desktop-bugs/suggestions/48836909-broken-overprint-preview-in-28-7-1

kglad · Answer

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.

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