4 people reported

All time, since Sep 30, including 3 thumbs-up on GitHub.

RSC and form requests to literal bracketed route URL return 500

“The RSC and form requests should render successfully, like the HTML request and the concrete parameter control.”

Is this your bug? What gets counted gets fixed. Pile on.

Paste this into your agent. It files your report, with your error and version.

I hit this bug: rapsheet.dev/sheets/next-js/issues/4150/file
Follow it to file my report. Show me the text before you send.

No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends

With cacheComponents, requesting a dynamic route at a literal "[slug]" URL fails for RSC and POST, while HTML succeeds.

Is this your bug?

File my report
Where
App Router dynamic routes
Error text
Invariant: postponed state should not be provided when fallback params are provided. This is a bug in Next.js.
Versions
16.4.0-canary.53
How bad
Breaks a normal workflow.

Original reports1, newest first

  1. cacheComponents: RSC and form requests to literal dynamic route URL fail with E592On GitHub#99500

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