Issue with next-intl and App Router: /zh prefix displays /en version instead of the correct one

[ghost]

When using next-intl with the App Router, adding the /en prefix works correctly and displays the English version. However, when adding the /zh prefix, it still shows the English version instead of the Chinese version.

https://lol.launch.test.psylabs.tech

Everything works locally, if you run the production build locally, everything works. When you deploy via docker to the machine /zh does not work.

DockerFile

FROM node:22.9.0-slim
COPY . .
RUN npm install -g pnpm && pnpm install && pnpm build
CMD ["pnpm", "start"]