Affected version
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A cancelled request to /_next/image leaves a stale in-flight promise in the image optimization cache, causing subsequent requests for the same image URL to hang indefinitely until server restart.
When a CSS file is imported by both a page and a component loaded with next/dynamic and kept mounted via _app, the stylesheet link is incorrectly marked with data-n-p and removed during client-side navigation. This happens because the dynamic CSS manifest is not loaded correctly in the route module and not passed to _document.
When using dynamic(..., { ssr: false }) in the Pages Router, if a sibling Suspense boundary throws during hydration and React retries after the dynamic import has resolved, the loader's useSyncExternalStore uses the current loaded state as the server snapshot. This causes React to see a mismatch between the server-rendered loading state and the now-loaded client state, discarding the server-rendered DOM and falling back to client rendering.