Outlook Online doesn't show addin button in first opened email

[Aidam1]

Provide required information needed to triage your issue

Your Environment

• Platform [PC desktop, Mac, iOS, Office on the web]: Office on the web
• Host [Excel, Word, PowerPoint, etc.]: Outlook
• Operating System: Windows 11
• Browser (if using Office on the web): Chrome 124.0.6367.202

Expected behavior

When I open Outlook Online and select an email, I expect addin buttons to be visible.

Current behavior

When I open Outlook Online and select an email, I don't see addin buttons.

They are visible only after I select another email. This happens even with Viva Insights addin.

Steps to reproduce

1. Open Outlook Online
2. Either first email is selected, or select one
3. The addin button isn't visible
4. Select next email
5. The addin button is visible

[mmanjaree-msft]

This is a known issue and is by design from the Outlook web team. This design ensures that customers do not see a sub-optimal experience when logging in to Outlook on the web for the first time. We do not have an ETA for a fix available at this time but rest assured that we are working towards improving this behavior in our future planning cycles.

[Aidam1]

This is sub-optimal experience for our users. What author feedback do you need?

[rajjha-msft]

Currently, there is no need for any action on your part.
This is a known issue, and we are actively working to improve this behavior in our future planning cycles. Unfortunately, we do not have an estimated time for when the issue will be resolved.