Chris Woodfield

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1. CEPHtmlEngine keeps both macOS and Windows awake

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   14 comments  ·  Illustrator (Desktop) Bugs » Performance  ·  Delete…  ·  Admin →
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   Started (Available in general build)  ·  AdminEgor Chistyakov (Admin, Adobe Illustrator) responded

   The team made some fixes in the latest general release 30.7 to fix the problem with the sleep mode. Can you please give it a spin and comment if it helps?

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   Chris Woodfield commented  ·  Jan 2, 2026  ·  Edit…  ·  Delete…

   This still appears to be an issue running Illustrator 30.1 on MacOS Tahoe 26.1 Display does auto-lock and the OS doesn't go to sleep unless I close the laptop lid.

   Interestingly, looking at Activity Monitor now, I see that it's the main Adobe Illustrator process that has the Preventing Sleep flag, while the CEPHTMLEngine and related processes do not (see screenshots). This is different from what I observed when first troubleshooting this.

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   Chris Woodfield supported this idea  ·  Jan 2, 2026