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Microsoft Teams | Microsoft Teams for business | Meetings and calls | Change backgrounds
Customizing the visual backdrop during video calls to enhance privacy or presentation
Dear EsterHW
Hope you are doing great.
Thanks for reaching out to Microsoft forum community, pleasure to assist.
I did further investigation on the scenario you are facing and notice that there is an incident that was posted to the Service Health with ID xxx which might be related to this behavior.
The user experience of this incident is: TM1040294
More info: Users may be unable to upload background images larger than 1800x1800 during Microsoft Teams meetings
Affected Workloads
Microsoft Teams
Timing
2025-03-24 16:38:38 ~ N/A (Duration: 4 days)
Overall Incident Status
Investigating
Classification
Advisory
Origin
Microsoft
Feature
General
Feature Group
Teams Components
High impact
No
Impact Description
Users may be unable to upload background images larger than 1800x1800 during Microsoft Teams meetings.
Is Global
No
Last Updated
2025-03-27 19:06:07
Latest Message
Title: Users may be unable to upload background images larger than 1800x1800 during Microsoft Teams meetings User impact: Users may be unable to upload background images larger than 1800x1800 during Microsoft Teams meetings. More info: When attempting to upload a background image larger than 1800x1800, users receive an error message stating, "invalid image size" and the upload fails. Users can avoid this issue by resizing the desired image to below the aforementioned dimensions. Current status: Our fix to revert the strict size check logic has been validated and we're expecting deployment to start by Monday, March 31, 2025, which is when we anticipate providing an updated timeline for impact remediation. Scope of impact: This issue may affect any user attempting to upload a background image larger than 1800x1800 during any Microsoft Teams meeting. Start time: Tuesday, March 18, 2025, at 2:13 AM UTC Root cause: A recent change instituted a restriction on image size for background image uploads in Microsoft Teams. Next update by: Monday, March 31, 2025, at 11:00 PM UTC
In case any update from backend, we will keep you posted
Have a great day.