Miscellaneous topics that do not fit into specific categories.
Hi Mike
This is a public community forum, so we don't have access to your Microsoft 365 tenant and can't investigate Planner service issues directly.
Since the behavior occurs in both Chrome and the Teams desktop app and affects multiple users, it is more likely to be a Planner service/UI issue than a browser-specific problem.
Please check:
- Whether the issue only occurs in Board view.
- Whether the plan is grouped by Bucket when the scrolling happens.
- Whether switching to another grouping option (Assigned to, Progress, Due date, etc.) changes the behavior.
If the issue persists, please ask your Microsoft 365 administrator to:
- Review the Microsoft 365 Service Health dashboard for any Planner-related advisories.
- Open a support request from the Microsoft 365 Admin Center:
- Admin Center → Help & Support → New Service Request
- Provide Microsoft with a screen recording showing the unexpected horizontal scrolling and confirm that multiple users are affected.
This will allow the Planner support team to collect logs and investigate further.