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Formatting Issues

Fix Word Paragraph Spacing Changes After macOS Sequoia Update

Maira MehtabMaira Mehtab Sep 22, 2026 869 views

Question details

Users are experiencing unexpected changes to paragraph and line spacing in Microsoft Word after updating to macOS Sequoia 15.3.1, with manual spacing adjustments failing to persist for new documents.

Product
Microsoft Word
Device & OS
macOS Sequoia 15.3.1
Scenario
Creating new documents or editing existing ones after installing a major macOS system update.
Observed behavior
Line and paragraph spacing settings unexpectedly change, and adjustments made via the Paragraph dialog fail to save as the default for subsequent new documents.
Before you start

Ensure you have saved your current work and determine whether your document relies on the default Normal template or customized style templates.

Solution 1Recommended

Set Line Spacing as Default in the Normal Template

Fix recurring spacing issues by applying your preferred line spacing directly to Word's default Normal template, ensuring all future documents inherit the correct formatting.

Major operating system updates can occasionally disrupt Microsoft Word's default template preferences. Modifying the Normal template establishes a fresh baseline for all new files.

1
Access the Paragraph format menu

Open Microsoft Word on your Mac, click on 'Format' in the top menu bar, and select 'Paragraph' from the dropdown list.

2
Set line spacing values

In the Paragraph dialog box, locate the Spacing section. Change the 'Line Spacing' option to 'Single' and ensure the specific value box is set to '1'.

3
Apply settings as default

Click the 'Set As Default' button located at the bottom of the dialog box. When prompted, select 'All documents based on the Normal template' and click 'OK'.

4
Adjust customized styles

If you are working in a document that uses customized styles instead of the default Normal template, open the Styles pane, right-click the specific style, select 'Modify', and apply the same spacing settings under Format > Paragraph.

Custom Styles Limitation: Documents built on custom style templates will not inherit changes made to the Normal template and require separate, individual style modifications.
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Frequently Asked Questions

Why did the macOS Sequoia update change my Word paragraph spacing?

Major operating system updates can sometimes disrupt Microsoft Office preference files or template caches, causing the default Normal template to revert or behave unpredictably.

Will setting the default line spacing fix my existing documents?

No, changing the default Normal template settings only applies to new documents created after the change. Existing documents with altered spacing must be adjusted manually.

How do I change paragraph spacing for a specific custom style?

Go to the Home tab, open the Styles pane, right-click the custom style you want to change, select Modify, click Format > Paragraph, and input your desired line spacing.