Sun & Moon Button Missing for Dark Mode in Outlook 365 Reading Pane

Anonymous
2019-10-08T17:02:11+00:00

I am using Outlook 365 1909 (Build 12026.20320) Monthly Channel. The Sun and Moon button was available in message's toolbar in Outlook for several days and now it is gone. No policies have been changed and system is restarted every evening. Microsoft Windows Version 1903 (18362.388) x64.

Thank you.

Outlook | Windows | Classic Outlook for Windows | For home

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Anonymous
2019-10-15T17:24:51+00:00

Hi all,

The Outlook Team currently has the Sun/Moon feature enabled in Monthly Channel Production at 10% of users.  It was enabled at a higher percent earlier until a bug was found.  The team wants to fix that bug before it gets turned back on for everyone.  If I can get an ETA on the rollout I'll post back with that status.

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Anonymous
2019-10-16T06:17:11+00:00

Hi all,

The Outlook Team currently has the Sun/Moon feature enabled in Monthly Channel Production at 10% of users.  It was enabled at a higher percent earlier until a bug was found.  The team wants to fix that bug before it gets turned back on for everyone.  If I can get an ETA on the rollout I'll post back with that status.  

I experienced the same dark mode problem. May we know whether dark mode in outlook (with sun/moon button) is a beta feature or released feature?

If this is a released feature, why sun/moon feature is enabled in only 10% users ?

If this is in beta testing, why it is released in monthly production update?

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  1. Anonymous
    2020-02-22T14:39:55+00:00

    Thank you, but what if you need the other acount?

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  2. Anonymous
    2020-02-21T20:09:53+00:00

    Edit: The symptoms below are fixed in the current version 2001.  If you're on an older version, try updating.

    I've noticed that the Switch Background/sun&moon button disappears when you have added a secondary account under File, Account Settings, Account Settings.  The message pane defaults back to a white background in this configuration.  Remove that account, close/reopen Outlook, and the button is back, and the background defaults back to dark mode again.  This is on Version 1910, build 12130.20272, monthly channel.

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  3. Anonymous
    2020-01-20T16:39:09+00:00

    Office 365 MSO is all I could find. Thanks kindly.

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