Hey, this is a known issue. Subagents aren’t inheriting Bedrock credentials correctly right now. The team is aware.
A couple things we need for debugging:
- What Cursor version are you on? (Help > About)
- What exactly happens? An error, a fallback to another model, or the subagent just doesn’t start?
- Which model are you using via Bedrock?
There’s also a similar bug for custom OpenAI URLs: Sub-agents are not using custom OpenAI base URLs
Let me know the details and I’ll pass them to the team.