anomalyco / anomalyco/opencode
[Desktop] Fatal renderer error: "Stale read from <Show>" when opening a project folder
@Hona is already working on this.
Since Aug 1, 2026.
- Dominant language
- TypeScript
- Stars
- 209k
- Forks
- 27.5k
- PR merge metrics
- PR metrics pending
Description
Environment
- App: OpenCode Desktop 1.18.10 (packaged,
oc://renderer/) - OS: macOS, arm64
- Runtime (from debug bundle manifest): Electron 42.3.3, Chrome 148.0.7778.218, Node 24.15.0
Error
Logged as fatal renderer error in renderer.log (url: oc://renderer/index.html, platform: desktop):
Error: Stale read from <Show>.
at castError (oc://renderer/assets/main-DX5ErpZp.js:735:10)
at handleError (oc://renderer/assets/main-DX5ErpZp.js:748:18)
at runComputation (oc://renderer/assets/main-DX5ErpZp.js:501:12)
at updateComputation (oc://renderer/assets/main-DX5ErpZp.js:470:3)
at runTop (oc://renderer/assets/main-DX5ErpZp.js:566:7)
at runQueue (oc://renderer/assets/main-DX5ErpZp.js:638:45)
at completeUpdates (oc://renderer/assets/main-DX5ErpZp.js:594:5)
at runUpdates (oc://renderer/assets/main-DX5ErpZp.js:584:5)
at oc://renderer/assets/main-DX5ErpZp.js:473:7
Repro context
Triggered when opening/switching to a project folder in the desktop app.
Timeline from the debug bundle session logs:
[2026-08-01 10:18:32.859] [error] ResizeObserver loop completed with undelivered notifications.
[2026-08-01 10:18:32.885] [error] ResizeObserver loop completed with undelivered notifications.
[2026-08-01 10:18:47.937] [error] (renderer) fatal renderer error { ... }
The renderer.log for the failing session is very short (only these lines) — the renderer appears to die during initial/first-screen render after the project switch. Server layer kept running normally (no server-side errors in server.log).
Observations
- Intermittent: several earlier sessions (previous day and same day) were completely clean — no renderer errors. Only this one session hit the fatal error.
- Renderer-only failure: the underlying server/agent layer was unaffected.
- The app auto-generated a debug bundle (
opencode-debug-20260801T021852) containingrenderer.log,main.log,server.log,crash.log, network logs andmanifest.json— available if you need more details.
Initial assessment (not a diagnosis)
Looks like a SolidJS stale-signal race in the renderer: <Show> read a signal that had already been disposed/replaced during a batched update run triggered by the project switch (stack goes through runUpdates -> runQueue -> completeUpdates). The two ResizeObserver loop warnings right before it suggest layout churn around the same moment, possibly related.
Happy to share the full debug bundle or run extra logging on request — otherwise leaving the deep diagnosis to you.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Assessment
This issue has not been assessed yet.