After upgrading to version 2512 (build 16.0.19530) or later, users may find that heading numbering disappears when a Style Separator is used.

Alfonsina Trento 15 Reputation points
2026-02-03T10:03:27.7466667+00:00

After upgrading to version 2512 (build 16.0.19530) or later, users heading numbering disappears when a Style Separator is used.

Microsoft 365 and Office | Word | Other | Windows

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Charles Kenyon 170.7K Reputation points Volunteer Moderator
2026-02-26T19:43:33.6733333+00:00

This has been reported as fixed in Version 2602.

I can confirm that this fixed it on my machine.

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  1. Viorel 127.3K Reputation points
    2026-02-03T11:32:42.06+00:00

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  2. G, Girish (TR Technology) 5 Reputation points
    2026-05-06T06:35:37.4433333+00:00

    Hi @Charles Kenyon

    I have been using the latest **Microsoft® Word for Microsoft 365 MSO (Version 2603 Build 16.0.19822.20086) 64-bit

    We are still seeing the same issue. Can you please confirm whether it is fixed in particular version.**

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  3. Charles Kenyon 170.7K Reputation points Volunteer Moderator
    2026-02-05T18:41:41.6333333+00:00

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  4. AI answer

    2026-02-03T10:03:36.68+00:00

    After upgrading to version 2512 (build 16.0.19530) or later, it has been reported that users may experience issues with heading numbering disappearing when a Style Separator is used. This is a known problem that can affect how headings are displayed in documents, particularly when using specific formatting features like Style Separators.

    To address this issue, users may need to check their document formatting settings or consider alternative methods for managing heading styles and numbering until a fix is provided in a future update.


    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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    1 person found this answer helpful.