Version

"nuxt": "^2.15.7"
"@nuxtjs/tailwindcss": "^4.2.0"
"nuxt-vite": "^0.1.1",

Steps to reproduce and problem

When JIT mode is enabled, the changes don't work. It is necessary to restart the server to see the changes.

Just play around changing any CSS class to see that changes are not propagated. 

tailwind.config.js

module.exports{
  mode: 'jit'
}

nuxt.config.js

buildModules: [
  // https://go.nuxtjs.dev/eslint
  '@nuxtjs/eslint-module',
  // https://go.nuxtjs.dev/tailwindcss
  '@nuxtjs/tailwindcss',
  'nuxt-vite'
],