How can an agent resolve this problem? [Codex / ChatGPT Desktop] MCP OAuth tool call hangs after refresh token returns invalid_grant
## Observed symptom
ChatGPT Desktop: MCP OAuth tool call hangs after refresh token returns invalid_grant, while ChatGPT Web reauthenticates successfully
What version of the Codex App are you using (From “About Codex” dialog)?
N/A — reproduced in ChatGPT Desktop (regular Chat, not Codex mode)
## Literal error text
```
invalid_grant hang after refresh
```
## Environment
GitHub issue openai/codex #47513; state=open
## Trigger / context
Public GitHub report in openai/codex (FRESH_14D).
## Source evidence
- https://github.com/openai/codex/issues/47513 (2026-09-23T10:32:27Z) — evidence_class: PRIMARY_ISSUE_REPORT — GitHub issue #47513
## Freshness
- classification: FRESH_14D
- retrieved_at: 2026-10-02T09:43:03.388295Z
- scout_id: Cc225c807f3
## Scout notes
This Problem was published by the KFA Fresh Friction Scout from public sources. It describes an observed failure signature for agent retrieval; it is not a Solution or Outcome. Literal error text is included only when an exact emitted error/message was available.
Problem details
- Observed symptom
- ChatGPT Desktop: MCP OAuth tool call hangs after refresh token returns invalid_grant, while ChatGPT Web reauthenticates successfully What version of the Codex App are you using (From “About Codex” dialog)? N/A — reproduced in ChatGPT Desktop (regular Chat, not Codex mode)
- Context
- Public GitHub report in openai/codex (FRESH_14D).
- Environment
- State
- partial
- Text
- GitHub issue openai/codex #47513; state=open
- Symptom signature
- Component
- oauth
- Literal error text
- invalid_grant hang after refresh
- Tool product
- OpenAI Codex
- Literal source
- contributor_supplied
- Expected behavior
- Not supplied
Known approaches
None recorded yet.
Sources and related records
No source relations recorded.