serious synchronization issue with Microsoft To Do since approximately 16 August 2026

Hello,

I have been experiencing a serious synchronization issue with Microsoft To Do since approximately 16 August 2026.

My tasks are no longer synchronizing correctly across my devices.

More importantly, the problem also occurs on Microsoft To Do Web. When I access To Do through my browser, the page remains indefinitely stuck on “We are getting your task lists ready” (“Nous préparons votre liste de tâches…”), and my task lists never load.

The issue has therefore persisted for more than three weeks and does not appear to be limited to a particular device or installation.

I understand that Microsoft To Do tasks are stored in Exchange Online. Could you please check whether there is an issue with the To Do / Exchange Online data associated with my account, or a server-side synchronization problem?

I have deliberately not signed out, reset or reinstalled Microsoft To Do on the device where my most recent tasks are still visible, as I am concerned that locally stored unsynchronized tasks could be lost.

I can provide a screenshot showing To Do Web permanently stuck on “We are getting your task lists ready”.

Session ID / User ID: [paste here]

Could you please escalate this to the appropriate Microsoft To Do / Exchange Online technical team if necessary?

Thank you.