OneNote keeps crashing when hitting UNDO

E. Leblanc 0 Reputation points
2026-11-08T15:41:09.96+00:00

Everytime I use OneNote on my Ipad it keeps crashing whenever I want to use the Undo button. I habe already updated the ipad as well as OneNote, restarted the ipad, reinstalled the app and disabled the stage manager but it all didn‘t help. I believe the problem lies in OneNote itself or its compatibility with IOS. I‘d really like some help on this topic as it gets very much annoying and really stops the entire workflow

Microsoft 365 Insider | OneNote | iOS
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  1. Vikki-T 13,600 Reputation points Microsoft External Staff Moderator
    2026-11-09T08:53:10.9+00:00

    Hi E. Leblanc,

    I understand how frustrating and disruptive this must be, especially when a basic action such as Undo repeatedly crashes the app and interrupts your workflow.

    Could you please create a blank page in a new test notebook, type a few words, and then tap Undo? This will help determine whether the crash affects OneNote generally or is connected to a particular notebook, page, or type of content.

    Please also let me know:

    • Your OneNote version
    • Your iPadOS version
    • Whether OneNote was installed from the regular App Store or through an Insider/TestFlight build
    • Whether the issue occurs in every notebook or only a specific one
    • Whether both the Undo button and the iPad undo gesture trigger the crash

    Since you have already updated and reinstalled the app, I would avoid resetting OneNote or removing offline notebooks until you have confirmed that all recent changes are fully synchronized.

    If OneNote also crashes when using Undo on a blank page, please report the issue through OneNote’s in-app feedback option and include the exact reproduction steps and version details. I understand that submitting feedback does not provide an immediate fix, but this information can help the product team investigate a consistently reproducible crash.

    Please note that this is a user-to-user support forum. Moderators, contributors including external Microsoft employees cannot directly intervene in Microsoft product features or access back-end systems. My role is limited to providing technical guidance on reported issues, requests, or ideas. Thank you so much for your understanding. 

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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  2. AI answer

    2026-11-08T15:41:27.2966667+00:00

    This matches a known pattern on iPad where OneNote can fail even after the app and iPadOS are fully updated and after reinstalling. In that case, the practical next step is to report it directly from OneNote so the product team can investigate the crash.

    Recommended steps:

    1. Open OneNote on the iPad.
    2. Go to Settings.
    3. Tap Send Feedback and report that OneNote crashes specifically when tapping Undo.

    Since the issue happens only on iPad and persists after these steps already tried:

    • updating iPadOS and OneNote
    • restarting the iPad
    • reinstalling OneNote
    • disabling Stage Manager

    that points more to an app bug or iPadOS compatibility issue than to a basic local setup problem.

    A few supported checks are still worth doing:

    1. Make sure all Microsoft Office apps on the iPad are updated, not just OneNote. OneNote on iOS shares Office identity components with apps like Word, Excel, and PowerPoint, and outdated Office apps can affect OneNote behavior.
    2. Sign out of OneNote and sign back in.
    3. If sign-in or sync behavior also seems abnormal, clear stored OneNote sign-in credentials:
      • Go to iOS Settings > OneNote > Reset OneNote > Delete Sign-In Credentials and turn it on.
      • Fully close OneNote.
      • Reopen OneNote and sign in again.
    4. Force a notebook sync by pulling down the Notebooks list until the spinning progress indicator appears.
    5. If notebooks are very large, reduce notebook size where possible by lowering the number of sections, pages, or heavy page content. Large notebooks can reduce responsiveness on iPad and iPhone.

    If the crash is only tied to Undo and not to sign-in or sync, the strongest supported path is still Send Feedback from within the app, because the context shows similar persistent iPad-only failures being treated as known app issues rather than user-fixable configuration problems.

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

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