Hi @Fub, could you attach your full editor log to this thread? Your issue appears to manifest slightly differently from the original issue described by @bigtail. Are you making a new project based on the blank template, or some other template?
Additionally, if you attempt the workaround described above (where you clear out the intermediate files in %localappdata%\UnrealEditorFortnite\Saved\VerseProject\FortniteGame, does that somehow resolve the issue?