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The issue is being tracked and is awaiting the fix by CEP team
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Dear Adobe Support Team,
I am writing to report an ongoing issue affecting macOS systems, specifically related to the background process CEPHtmlEngine, which is part of Adobe Creative Cloud applications.
# Issue Overview
On macOS, CEPHtmlEngine consistently prevents the system from entering sleep mode, even after all Adobe applications have been closed. This results in increased battery drain, unnecessary energy consumption, and disruption to system workflows.
The problem has been observed and confirmed via the Terminal command:
pmset -g assertions
This outputs:
PreventUserIdleSystemSleep 1
pid [XXXX] CEPHtmlEngine
# Impact
Battery Drain: On laptops, the inability to sleep drains the battery and impacts mobility.
Thermal Load: In some cases, CEPHtmlEngine causes higher CPU usage.
Workflow Disruption: Automated sleep schedules or energy-saving setups are affected.
Security Concerns: Background processes persisting post-app closure may conflict with IT policies.
# Request for Adobe
Please investigate why CEPHtmlEngine is blocking system sleep persistently.
Can Adobe provide an option in preferences or an update to control or disable this behavior?
Will future updates ensure CEPHtmlEngine respects macOS system sleep policies?
# Temporary Workaround (User-Side)
At present, users are forced to terminate the process manually via:
killall CEPHtmlEngine
However, this is not ideal or practical for most users
I kindly request that this issue be escalated to the appropriate development team for review and resolution.
Thank you for your attention,