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Crash with router.invalidate() inside startTransition #7638
Description
Which project does this relate to?
Start
Describe the bug
When using router.invalidate() inside startTransition the app crashes. The necessary precondition is that some nested route should error out with showing errorComponent
Complete minimal reproducer
https://github.com/valerii15298/tss-repros/tree/invalidate-transition-crash
Steps to Reproduce the Bug
git clone https://github.com/valerii15298/tss-repros
cd tss-repros
git switch invalidate-transition-crash
pnpm install
pnpm devOpen the http://localhost:3000/
Click Go to Test link
Click invalidate button
Wait up to 5 seconds
The app crashes with white screen and error:
Error: Rendered more hooks than during the previous render.
Expected behavior
The app should not crash
Screenshots or Videos
No response
Platform
- Router / Start Version: latest at the time of this issue(look into package json)
- OS: macOs
- Browser: any
- Bundler: Vite
- Bundler Version: vite@8.0.16 will be updated inside repro package json
Additional context
No response
Activity
valerii15298 commentedon Jun 15, 2026
It took me a while to create this minimal repro. The first time I encountered it with using form actions with react, which I later abandoned.
First time I crate this discord question and reproduction attached with form actions: https://discord.com/channels/719702312431386674/1478737651116015730
Related twit: https://x.com/vpetryniak/status/2049533818030145684?s=20
Since then I abandoned using react form actions, startTransition, router.invalidate and router loaders because of it. But needed one small thing from it and was able to reproduce it.
test: pin 24 community-reported issues fixed by the match-loading wor…