Its theme's rank, 14 days: 2 on the Codex sheet
18 people reported
All time, since Oct 24, including 9 thumbs-up on GitHub.
Sidebar renderer_ready_timeout
“Codex could not start The extension could not start its user interface.”
Is this your bug? What gets counted gets fixed. Pile on.
Paste this into your agent. It files your report, with your error and version.
I hit this bug: rapsheet.dev/sheets/codex/issues/20999/file Follow it to file my report. Show me the text before you send.
No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends
Sidebar fails to start with renderer_ready_timeout in remote VS Code. Sidebar shows "Codex could not start. The extension could not start its user interface." while the app server initializes but the webview sends no first message.
Is this your bug?
File my report- Where
- VS Code sidebar
- Error text
[CodexWebviewProvider] Webview renderer did not become ready- Versions
- 26.1021.22027
- Platforms
- Linux, macOS, Windows
- How bad
- Breaks a normal workflow. Some reports say it used to work.
Part of: Codex VS Code extension shows "Codex could not start" and its sidebar UI never loads9 bugs
- Sidebar renderer_ready_timeout52 people
- Sidebar UI fails to start4 people
- Extension UI fails to start128 people
- Webview fails in Remote WSL2 people
- User interface fails to start23 people
- Sidebar UI fails to start3 people
- Extension UI fails to start2 people
- Codex UI fails to start6 people
Original reports9, newest first
- Codex panel shows "could not start its user interface" on VS Code Insiders + Remote-SSH (renderer_ready_timeout)On GitHub#59840
- VS Code remote regression: 26.1021.22027 fails with renderer_ready_timeout; older version worksOn GitHub#58070
- Codex VS Code 26.1021.22027: startup preloads 3,045 JS modules and panel hits renderer_ready_timeout in a Linux devcontainerOn GitHub#58067
- [VS Code / Dev Containers] 26.1021.22027 UI startup times out after ~3,000 asset requests; reload succeedsOn GitHub#57810
- IDE Extension] Intermittent Codex sidebar renderer_ready_timeout on macOS and Remote-SSHOn GitHub#57306
- Codex IDE on Remote-SSH: recurring startup failure and gray-screen OOM — measured causes, failed fixes and maintainer questionsOn the forum#1409742
- [IDE/Remote-SSH] 30s renderer_ready_timeout: quadratic preload scan + 3,203 eager assets; measured failures after mitigationOn GitHub#57026
- VS Code Remote SSH: Codex webview never becomes ready (renderer_ready_timeout)On GitHub#56771
- Remote-SSH: Codex webview times out in 26.1021.22027; downgrading to 26.1007.21434 restores UIOn GitHub#56736