Error: "Commit tree does not contain fiber 9869. This is a bug in React DevTools."

[iktarun]

Describe what you were doing when the bug occurred:

1. I was recording profile and then I was trying to navigate to the other route on my website. Then I have stopped profiler and I have seen this error in the profiler.
2. I am lazy loading the page here.

Here is my react version:

"react": "16.8.6",
  "react-dom": "16.8.6",

---

Please do not remove the text below this line

DevTools version: 4.8.1-d4eadea6c

Call stack: at N (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:167176)
at T (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:165979)
at e.getCommitTree (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:168938)
at Wl (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:346620)
at oi (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:32:60964)
at Ui (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:32:70944)
at Bl (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:32:117704)
at Tc (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:32:103070)
at Oc (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:32:102998)
at Dc (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:32:102861)

Component stack: at Wl (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:346391)
at div
at div
at div
at Eo (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:266560)
at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:370969
at n (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:279481)
at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:282269
at div
at div
at Ji (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:329374)
at Ge (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:209300)
at sn (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:218616)
at Wa (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:297360)
at ps (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:40:376211)

[gaearon]

Is there a reproducible version of your page somewhere that we could test it on?

[bvaughn]

Likely a duplicate of #18831

[bvaughn]

FYI #19368 will likely fix this.

[bvaughn]

Should be fixed by #19373

New release will go out shortly

[bvaughn]

Version 4.8.2 has just been published to NPM and submitted to Chrome/Edge/Firefox stores with a fix for this issue.

Browsers sometimes take a few hours to approve a new extension version, but once the new version goes live this should be resolved. Sorry for the inconvenience.

[iktarun]

Thanks @gaearon @bvaughn for the response. I'll wait for these changes to reflect soon.
One more odd behavior I have noticed related to lazy loading and DevTools will create a new thread for that.

[iktarun]

@gaearon I can't share the page here.