Create ActorBP has StaticMesh is not assigned to HierarchicalInstancedStaticMeshComponent.
Place this actor on the level, and bind the StaticMesh from the Detail tab and add the appropriate Instance.
When it was correctly displayed StaticMesh with 4.16, but can't display StaticMesh until you save the level by pressing the SaveCurrent button from here with 4.17.
And select and moving this actor on the editor, the engine will crash.
1. Open attached project.
2. Select and moving ”BP_HiInst” on viewport when crash.
LoginId:8dca4f5549cb748e57781681ebf4da5e EpicAccountId:fb567da00f03436dabdb32db92746435 Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\Build\++UE4+Release-4.17+Compile\Sync\Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 596] Array index out of bounds: 0 from an array of size 0 UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:349] UE4Editor_Engine!UHierarchicalInstancedStaticMeshComponent::UpdateInstanceTransform() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\hierarchicalinstancedstaticmesh.cpp:1958] UE4Editor_Engine!UInstancedStaticMeshComponent::OnUpdateTransform() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\instancedstaticmesh.cpp:1607] UE4Editor_Engine!USceneComponent::PropagateTransformUpdate() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:654] UE4Editor_Engine!USceneComponent::UpdateComponentToWorldWithParent() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:559] UE4Editor_Engine!USceneComponent::UpdateComponentToWorld() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\classes\components\scenecomponent.h:837] UE4Editor_Engine!USceneComponent::UpdateChildTransforms() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:2194] UE4Editor_Engine!USceneComponent::PropagateTransformUpdate() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:673] UE4Editor_Engine!USceneComponent::UpdateComponentToWorldWithParent() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:559] UE4Editor_Engine!USceneComponent::InternalSetWorldLocationAndRotation() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:2610] UE4Editor_Engine!USceneComponent::MoveComponentImpl() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:2734] UE4Editor_Engine!USceneComponent::SetRelativeLocationAndRotation() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:1155] UE4Editor_Engine!USceneComponent::SetRelativeTransform() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:1282] UE4Editor_Engine!USceneComponent::SetWorldTransform() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\components\scenecomponent.cpp:1394] UE4Editor_Engine!AActor::EditorApplyTranslation() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\engine\private\actoreditor.cpp:474] UE4Editor_UnrealEd!UEditorEngine::ApplyDeltaToActor() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\editorengine.cpp:2609] UE4Editor_UnrealEd!FLevelEditorViewportClient::ApplyDeltaToActor() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\leveleditorviewport.cpp:3723] UE4Editor_UnrealEd!FLevelEditorViewportClient::ApplyDeltaToActors() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\leveleditorviewport.cpp:3404] UE4Editor_UnrealEd!FLevelEditorViewportClient::InputWidgetDelta() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\leveleditorviewport.cpp:2363] UE4Editor_UnrealEd!FEditorViewportClient::UpdateMouseDelta() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\editorviewportclient.cpp:2026] UE4Editor_UnrealEd!FEditorViewportClient::Tick() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\editorviewportclient.cpp:1106] UE4Editor_UnrealEd!FLevelEditorViewportClient::Tick() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\leveleditorviewport.cpp:2064] UE4Editor_UnrealEd!UEditorEngine::Tick() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\editorengine.cpp:1725] UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [d:\build\++ue4+release-4.17+compile\sync\engine\source\editor\unrealed\private\unrealedengine.cpp:402] UE4Editor!FEngineLoop::Tick() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:3215] UE4Editor!GuardedMain() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\launch\private\launch.cpp:166] UE4Editor!GuardedMainWrapper() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:134] UE4Editor!WinMain() [d:\build\++ue4+release-4.17+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:210] UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253] kernel32 ntdll
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-48897 in the post.
| 0 |
| Component | UE - Gameplay - Components |
|---|---|
| Affects Versions | 4.17.1 |
| Target Fix | 4.17.2 |
| Fix Commit | 3615000 |
|---|
| Created | Aug 28, 2017 |
|---|---|
| Resolved | Aug 29, 2017 |
| Updated | Apr 27, 2018 |