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tzachi's avatar
tzachi
Copper Contributor
Feb 12, 2026

# OneDrive AutoSave Stopped Working After Update to Version 26.007.0112 on macOS

**Product:** Microsoft 365 and Office | OneDrive | For home | macOS   ## Summary   Since OneDrive automatically updated to version 26.007.0112 (26007.0112.0002) a few days ago, I am experiencing ...
office 365
OneDrive for Business
NikolinoDE's avatar
NikolinoDE
Platinum Contributor
Mar 11, 2026

This is a known, critical regression affecting the Version 26.007 (Build 26007.0112) release of OneDrive on macOS. You are not imagining it, and it is not your configuration.

Microsoft has acknowledged issues with this specific build regarding Files On-Demand integration and the AutoSave API for Office apps. The "Upload Failed" error combined with opening old versions is particularly dangerous because it indicates a "sync collision" where OneDrive is failing to lock the file for upload, causing Office to revert to the last known cloud state.

Here is a breakdown of how to mitigate this immediately, how to roll back, and how to work around it until a hotfix is released.

 

Roll Back to a Previous Version (Recommended)

The only way to restore 100% functionality immediately is to downgrade from 26.007.0112 to the previous production build (25.233.x or similar). Microsoft does not provide an official "downgrade" button, but you can do it manually.

  1. Quit OneDrive completely (Right-click icon -> Quit).
  2. Download the previous stable standalone installer (version 25.233.1126 or similar). Note: You may need to find this on third-party repositories like "MacAdmins" or "MacUpdate" if Microsoft hasn't archived it officially, as they usually only host the latest.
  3. OR Use a package manager like Homebrew:

brew install --cask onedrive

(Note: Homebrew cask often lags slightly behind or allows pinning, but currently, they may have pulled the bad build too. Check brew info onedrive).

 

Immediate Workarounds (If you cannot downgrade)

If you must stay on version 26.007 for now, you must change your workflow to bypass the broken Finder integration.

 1. Disable "Files On-Demand" for Active Folders
The bug is triggered when Office tries to verify the "online-only" status. Force the files to be physical.

  • Select the folder in Finder.
  • Right-click -> Always Keep on This Device.
  • Note: This will consume significant disk space, but it bypasses the "fetching" delay.

 2. Stop Opening Files via Finder
The "Saved on My Mac" error happens because the OS is handing the file path to Office beforeOneDrive has stamped it as "synced."

  • The Fix: Open Word/Excel first.
  • Go to File > Open > Browse.
  • Navigate to your OneDrive folder inside the file picker dialog.
  • This forces Office to use the WAC (Web App Companion) protocol directly rather than relying on the Finder/macOS file coordinator.

 3. Reset Office Auth and Keychain
Sometimes the token between Office and OneDrive gets corrupted by the update.

  • Open Keychain Access on Mac.
  • Search for OneDrive and Office 365.
  • Delete all "internet password" and "generic password" entries related to OneDrive/Microsoft.
  • Restart Office. You will be forced to sign in again. This often re-establishes the broken handshake.

 4. Disable "Open at Login"

  • System Settings > General > Login Items.
  • Remove OneDrive.
  • Launch it manually after you have launched Word/Excel once. This ensures the Office sync plugins load after the core app.

My answers are voluntary and without guarantee!

Hope this will help you.

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