Power Platform Community Forum Thread Details

Yesterday at least the agent in teams still function as per normal but now right before it outputs, it just freezes for a few minutes, that bump out all the texts at one go which isn’t very good for the front end because user thinks it stalled

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Building Copilot Studio chatbots in Microsoft Teams

Hi ET-12060849-0, thanks for reaching out!

This is a known behavior when streaming is not enabled or when the agent generates a very large response before sending anything to Teams. Here's what to check:
1. Enable Streaming (Most Likely Fix)
In Copilot Studio → your agent → Settings → Generative AI → enable "Stream responses".
This makes the agent output text progressively instead of all at once, so users see activity immediately.

2. Break Up Long Responses
If the agent is returning very long findings in a single message:

Add message chunking in your topic — split the response into multiple smaller messages
Use Adaptive Cards to structure output rather than one large text block
3. Check for Recent Platform Changes
Since this started happening suddenly:

Check the Microsoft 365 Service Health dashboard for any active incidents
Teams and Copilot Studio had recent rollouts — a platform-side regression is possible
4. Increase Timeout Tolerance (Workaround)
While waiting for a fix, add a typing indicator or an interim message like "Analyzing, please wait…" early in the topic flow so users know the agent is working.