Hey, thanks for the report and the request ID.
I can see the screenshot, the agent is explicitly saying it doesn’t have access to the desktop. This is a known issue, the team is aware and is already looking into it.
As a workaround, try switching the model to GPT Codex or Claude Opus. Other users report that computer use and demo recordings work with those models, but not with Composer 1.5.
Let me know if switching the model helps.