Tailwind 4.0.0-alpha.25 crashes my 5.0.0-next.259 app on hot reload

[blaketradedev]

What version of Tailwind CSS are you using?

"@tailwindcss/postcss": "4.0.0-alpha.25",
"@tailwindcss/vite": "4.0.0-alpha.25",

What build tool (or framework if it abstracts the build tool) are you using?

pnpm 8.15.4, vite 5.4.8, @sveltejs/vite-plugin-svelte 4.0.0-next.7,

What version of Node.js are you using?

v21.7.1

What operating system are you using?

macOS

Describe your issue

I had tailwind 4.0.0-alpha.19, when I upgraded to .25, the app started to crash every time I saved a file in my sveltekit 5 app, I guess you call it hot reload? I downgraded and the problem went away, so would be great if you guys could check that out

[philipp-spiess]

@blaketradedev Hey! Do you have a repro setup for us to take a look? Additionally, is there maybe anything being logged as to why it crashes?