Office for Mac Issues

Fix PowerPoint Morph Transition Not Working on Mac After Update

Maira Mehtab Sep 20, 2026 868 views

Question details

The user needs to restore the functionality of the Morph transition feature in Microsoft PowerPoint, which stopped working after a recent software update.

Product: Microsoft PowerPoint
Device & OS: MacBook Air M2 (macOS)
Scenario: Attempting to use the Morph transition in new presentations after updating Microsoft 365 desktop apps to version 16.90.
Observed behavior: The Morph transition fails to execute in new files, despite older presentations still displaying the Morph animation correctly.

Before you start

Ensure you have saved all open presentations and verify if the Morph issue happens exclusively in newly created files or if it also affects specific templates.

Solution 1Recommended

Install the Latest Supplemental PowerPoint Update

Microsoft frequently releases supplemental updates to address bugs and feature breakages introduced in major releases like version 16.90.

Major software updates can sometimes introduce unexpected bugs to complex features like animations. Checking for an immediate patch is the most direct way to resolve newly introduced glitches.

Open Microsoft AutoUpdate

Launch PowerPoint on your Mac, click on 'Help' in the top macOS menu bar, and select 'Check for Updates'.

Download and Install Fixes

Allow the Microsoft AutoUpdate tool to search for the latest version. If a supplemental update for version 16.90 is available, click 'Update' to install it.

Restart PowerPoint

Once the installation is complete, restart Microsoft PowerPoint and test the Morph transition on a new slide.

Enable Automatic Updates: Keep the 'Automatically keep Microsoft apps up to date' checkbox ticked in the AutoUpdate window to receive future bug fixes immediately.

Solution 2

Uninstall and Reinstall Office for Mac

Since Office for Mac lacks a built-in repair utility, reinstalling the software is the best method to fix a corrupted installation.

Solution 3

Test PowerPoint in a New macOS User Profile

Testing the app in a fresh user profile helps identify if the bug is tied to your specific macOS user cache or the Office installation itself.

Free Microsoft Office alternative

Try WPS Office for Smooth Presentation Design on Mac

If Microsoft PowerPoint updates continue to break essential features like transitions, consider switching to WPS Office. It provides a lightweight, highly compatible alternative for macOS users, ensuring your presentations run smoothly without unexpected update glitches.

1. Download for Mac: Visit the official WPS Office website and download the dedicated macOS version.
2. Install the App: Open the downloaded package and drag the WPS Office icon into your Applications folder.
3. Open Your Presentations: Launch WPS Presentation and open your existing .pptx files to seamlessly continue your work with all transitions intact.

Free to use with a lightweight macOS installationFully compatible with Microsoft PowerPoint (.pptx) formatsFamiliar user interface for a seamless migrationReliable animation and transition effects for Mac users

Frequently Asked Questions

Why does Morph work on older presentations but not new ones after the update?

Older presentations often retain cached animation properties and rendering data that allow them to play correctly. Newly created slides rely entirely on the current, potentially bugged version of the PowerPoint application (like version 16.90) to generate the Morph effect from scratch.

Is there a built-in repair tool for Microsoft Office on Mac?

Unlike the Windows version, Office for Mac does not include a dedicated repair utility. Troubleshooting a corrupted installation on a Mac typically requires completely moving the application to the Trash and reinstalling it from your Microsoft account.

How do I know if my macOS user profile is causing PowerPoint issues?

You can isolate the cause by creating a new user account in macOS System Settings. If the PowerPoint Morph transition works flawlessly in the new profile, it confirms that your original user profile's settings, preferences, or cache files are interfering with the application.

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