latest version windows, vsc, "tailwindcss": "^4.0.0-beta.9", if you have today new version @tailwindcss/language-server@0.12.18 https://www.npmjs.com/package/@tailwindcss/language-server/v/0.12.18 autocomplete broken if you downgrade to prev version 0.0.27 (yes crazy number , yes its prev version :D) https://www.npmjs.com/package/@tailwindcss/language-server/v/0.0.27 all work fine