project/
├── app/
│ ├── [lang]/ // Dynamic folder for different languages
│ │ ├── [regular]/ // Contains regular pages for each language (e.g., about.tsx, contact.tsx)
│ │ │ └── page.tsx // (Optional) Can be used as a default layout for regular pages in this language.
│ │ └── [...notfound]/ // Catch-all route for unmatched routes within the language folder.

I'm encountering an issue where the Not Found page in my Next.js project works correctly during local development (yarn build) but not on Vercel deployment. The route en/hssh should trigger the Not Found page, but it doesn't seem to be working as expected.

Troubleshooting Steps Taken:
- Rebuilt and redeployed the project to Vercel.
- Checked Vercel build logs for errors or warnings.
- Reviewed catch-all routes and dynamic routes in Next.js configuration.

Has anyone else faced this issue? Any suggestions or insights would be greatly appreciated!

Additional Information:

- GitHub Repository: https://github.com/tfmukles/nextplate