next/link false 404

What version of Next.js are you using?

10.2.0

What version of Node.js are you using?

12.X.X

What browser are you using?

Safari, Chrome, Firefox

What operating system are you using?

macOS

How are you deploying your application?

Vercel

Describe the Bug

Since Nextjs upgrade, clicking on a <Link /> component targeting a getStaticPaths...fallback: 'blocking' page generates a 404. Direct access to the page or refreshing the page seems to be working (not consistent behavior though).

Expected Behavior

User should access the page if found.

To Reproduce

Clone the following repo: https://github.com/dimroth/next-broken-link-repro and push to Vercel.

Try clicking on a link from /articles page. It should display a 404 (perhaps not systematically). If you try to directly access the /articles/one, /articles/two or /articles/three pages, it should work after a few refreshes if not on the first.

Note, switching back to next@10.0.7 solves the issue.

Note: you won’t reproduce in vercel dev mode, needs to be pushed on a production environment.

[ijjk]

Hi, we’ve landed a fix for this which should be available soon, will update here when it is

[balazsorban44]

This issue has been automatically locked due to no recent activity. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.