Crash with migrated UE5.1 worldpartition project to UE5.4 at the openning

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Hello, after migrating my UE5.1 big worldpartition project to UE5.4, when I try to oppen the new map in UE5.4 I have a crash : “Assertion failed: CellIndex < CellIndexMax [File:D:\build++UE5\Sync\Engine\Source\Runtime\Renderer\Private\SceneCulling\SceneCulling.h] [Line: 172]”

I need Help!!!