Crash when assembling MetaHuman with Groom from Houdini

Development Character & Animation
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1

Hi! I used Metahuman for Houdini tool to create a groom, it works fine in MH editor and morphs to fit head shape. But when I try to asseble the MH, I get a crash with following error message. How can I fix it? Thank you
Unreal 5.6.1

Assertion failed: GroupInfo.CurrentRenderVertexIndex < DeformedPositions[GroupIndex].RenderStrands.Num() [File:D:\build++UE5\Sync\Engine\Plugins\Runtime\HairStrands\Source\HairStrandsCore\Private\GroomRBFDeformer.cpp] [Line: 421]

UnrealEditor_Core
UnrealEditor_HairStrandsCore
UnrealEditor_HairStrandsCore
UnrealEditor_MetaHumanDefaultEditorPipeline
UnrealEditor_MetaHumanDefaultEditorPipeline
UnrealEditor_MetaHumanCharacterPalette
UnrealEditor_MetaHumanDefaultEditorPipeline
UnrealEditor_MetaHumanDefaultEditorPipeline
UnrealEditor_MetaHumanCharacterPalette
UnrealEditor_MetaHumanDefaultEditorPipeline
UnrealEditor_MetaHumanCharacterPalette
UnrealEditor_MetaHumanCharacterEditor
UnrealEditor_MetaHumanCharacterEditor
UnrealEditor_MetaHumanCharacterEditor
UnrealEditor_MetaHumanCharacterEditor
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
user32
user32
UnrealEditor_ApplicationCore
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

2

The fix was to use Clean node on guides in Houdini