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Opening an already-imported Xtream portal reads the saved catalog in tens of milliseconds, but the session made the shell mount the full-screen import overlay right away, so it flashed for about two frames between the skeleton and the loaded page (J2 open-source). A session that has only read the saved catalog (loading-cached, store isImporting still false) now shows the overlay after a 300 ms delay. Remote import phases and refresh preparation still show it immediately, and a slow or stuck cache read still blocks and stays cancellable. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>