CSS Not Included in SSR / Prerender

[gallinaromaurizio]

Hi,
I build with sse:true and prerender and I just import a CSS file (Bulma CSS) inside the app.css that is imported in root.tsx so no tailwind or its plugin.
In dev mode all is fine but the builded prerenders are missing the stylesheet in the html head tag.
I also get the error: Error: No route matches URL "/app.css.map"
Is there already a known way to make it work ?