I am trying to deploy a project to vercel and while the build works and is deployed correctly, the javascript doesn't work at all when deployed to Vercel.

I need help with this (privately if possible to resolve)

When the project is built with next build locally the site works with no 404s but when deployed to Vercel the 404s start showing on slug URLs e.g. [slug].jsx

I have spent 48 hours trying to understand why this isn't working when deployed to no avail. 😫

Help will be greatly appreciated.