?url import of css file fails, but straight import of css file with same filepath works

Within my tanstack start project I've followed the same setup as displayed in the start basic example. However when calling a

?url

?url

import I get the following error in console:

Uncaught SyntaxError: The requested module '/_build/app/styles/tailwind.css?url' does not provide an export named 'default' (at root.tsx:6:8)

Uncaught SyntaxError: The requested module '/_build/app/styles/tailwind.css?url' does not provide an export named 'default' (at root.tsx:6:8)