react / react/react

[DevTools Bug]: CSS Animation Errors When Using Devtools

Open
#34,866 5 comments 1 reaction 1 assignee View on GitHub

@hoxyq is already working on this.

Since Oct 17, 2025.

Component: Developer Tools Status: Unconfirmed Type: Bug
Dominant language
JavaScript
Stars
251k
Forks
51.4k
Avg merge
2d 4h
Merged PRs (30d)
53

Description

Website or app

https://stackblitz.com/edit/stackblitz-starters-n26smqed?file=pages%2Findex.js

Repro steps

Repro steps:

  1. Install 7.0.0 React DevTools
  2. Use this sample project
  3. Open preview in new tab
  4. Run the animation and disable the DevTools to run it again

The animation becomes abnormal after using DevTools 7.0.0
The error happens not only the browser extension, but also local terminal.

https://github.com/user-attachments/assets/95960302-f3d3-4acb-b8d4-f511ecdd2ad1

How often does this bug happen?

Every time

DevTools package (automated)

No response

DevTools version (automated)

No response

Error message (automated)

No response

Error call stack (automated)

Error component stack (automated)

GitHub query string (automated)

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Assessment

This issue has not been assessed yet.

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.