Error: "Commit tree already contains fiber 48. This is a bug in React DevTools."

[brunoebstein]

Describe what you were doing when the bug occurred:

1. Start Profiler
2. Stop Profiler
3. Click on the arrow to see the next commit

I tried and it worked 🤷

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Please do not remove the text below this line

DevTools version: 4.9.0-75726fadfd

Component stack: CommitFlamegraphAutoSizer@moz-extension://e4e94e2d-7b62-42fe-80eb-d114edb77438/build/main.js:33986:50
div
div
div
SettingsModalContextController@moz-extension://e4e94e2d-7b62-42fe-80eb-d114edb77438/build/main.js:28047:1
Profiler_Profiler@moz-extension://e4e94e2d-7b62-42fe-80eb-d114edb77438/build/main.js:35614:50
ErrorBoundary_ErrorBoundary@moz-extension://e4e94e2d-7b62-42fe-80eb-d114edb77438/build/main.js:29061:5
PortaledContent@moz-extension://e4e94e2d-7b62-42fe-80eb-d114edb77438/build/main.js:29178:27
div
div
ProfilerContextController@moz-extension://e4e94e2d-7b62-42fe-80eb-d114edb77438/build/main.js:32775:1
TreeContextController@moz-extension://e4e94e2d-7b62-42fe-80eb-d114edb77438/build/main.js:24163:1
SettingsContextController@moz-extension://e4e94e2d-7b62-42fe-80eb-d114edb77438/build/main.js:24652:1
ModalDialogContextController@moz-extension://e4e94e2d-7b62-42fe-80eb-d114edb77438/build/main.js:29245:1
DevTools_DevTools@moz-extension://e4e94e2d-7b62-42fe-80eb-d114edb77438/build/main.js:36048:1

[bvaughn]

This issue has been reported a few times so I'm going to close this as a duplicate 😄 #18859

[bvaughn]

@brunoebstein This error remains the highest reported DevTools bug but we still don't have a repro case so that I can fix it. Do you remember how to repro the error you saw above? Can you share the steps with me if so? It would be very helpful! Thank you 🙇🏼