Agent Demos not showing inline

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1

Where does the bug appear (feature/product)?

Background Agent (GitHub, Slack, Web, Linear)

Describe the Bug

The demos the agent produces do not show up inline, it errors out.

Steps to Reproduce

Ask an agent to produce a demo.

Operating System

MacOS

Version Information

cursor.com/agents

For AI issues: which model did you use?

Composer 2.5

For AI issues: add Request ID with privacy disabled

https://cursor.com/agents/bc-1b6847a4-39f9-4a40-9b3e-deb84f8669cf?branch=cursor/redesign-results-app-69cf&app=code

Does this stop you from using Cursor

No - Cursor works, but with this issue

5

Hey, thanks for the report and for the bcId, that really helped.

Yep, confirmed this is a bug on our side. Your video artifact was recorded correctly and is stored in our storage, but the post-turn step that generates inline annotations for the demo cloudAgentTurnVideoAnnotationActivity fails with a provider 400 error when calling the annotation model. Because of that, the video exists, but the inline demo doesn’t show up in the UI.

I’ve filed a separate internal issue for this, since the existing tickets around cloud agent demos cover related problems, not this specific failure.

I can’t share an ETA for a fix yet. If you need the video in the meantime, it should still be available as an artifact in the runner, even if the inline view isn’t rendering.