This is an infrequent crash occurring in the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred.
Source Context
816 void FBodyInstanceCustomization::MarkAllBodiesDefaultCollision(bool bUseDefaultCollision)
817 {
818 if(PrimComponents.Num()) //If we have prim components we might be coming from bp editor which needs to propagate all instances
819 {
820 for(UPrimitiveComponent* PrimComp : PrimComponents)
821 {
822 if(UStaticMeshComponent* SMC = Cast<UStaticMeshComponent>(PrimComp))
823 {
824 const bool bOldDefault = SMC->bUseDefaultCollision;
825 const bool bNewDefault = bUseDefaultCollision;
826
827 TSet<USceneComponent*> UpdatedInstances;
828 ***** FComponentEditorUtils::PropagateDefaultValueChange(SMC, UseDefaultCollisionHandle->GetProperty(), bOldDefault, bNewDefault, UpdatedInstances);
829
830 SMC->bUseDefaultCollision = bNewDefault;
831 }
832 }
833 }
repro steps currently unknown
Assertion failed: IsValid() [File:D:\Build\++UE4+Release-4.17+Compile\Sync\Engine\Source\Runtime\Core\Public\Templates/SharedPointer.h] [Line: 835] UE4Editor_DetailCustomizations!FBodyInstanceCustomization::MarkAllBodiesDefaultCollision() [bodyinstancecustomization.cpp:829] UE4Editor_DetailCustomizations!FBodyInstanceCustomization::OnCollisionProfileChanged() [bodyinstancecustomization.cpp:863] UE4Editor_DetailCustomizations!TBaseSPMethodDelegateInstance<0,FBodyInstanceCustomization,0,TTypeWrapper<void> __cdecl() [delegateinstancesimpl.h:327] UE4Editor_DetailCustomizations!TBaseSPMethodDelegateInstance<0,FBodyInstanceCustomization,0,void __cdecl() [delegateinstancesimpl.h:434] UE4Editor_DetailCustomizations!TBaseDelegate<void,TSharedPtr<FString,0>,enum ESelectInfo::Type>::ExecuteIfBound() [delegatesignatureimpl.inl:624] UE4Editor_DetailCustomizations!SComboBox<TSharedPtr<FString,0> >::OnSelectionChanged_Internal() [scombobox.h:455] UE4Editor_DetailCustomizations!TBaseSPMethodDelegateInstance<0,SComboBox<TSharedPtr<FString,0> >,0,TTypeWrapper<void> __cdecl() [delegateinstancesimpl.h:327] UE4Editor_DetailCustomizations!TBaseSPMethodDelegateInstance<0,SComboBox<TSharedPtr<FString,0> >,0,void __cdecl() [delegateinstancesimpl.h:434] UE4Editor_DetailCustomizations!TBaseDelegate<void,TSharedPtr<FString,0>,enum ESelectInfo::Type>::ExecuteIfBound() [delegatesignatureimpl.inl:624] UE4Editor_DetailCustomizations!SListView<TSharedPtr<FString,0> >::Private_SignalSelectionChanged() [slistview.h:725] UE4Editor_DetailCustomizations!STableRow<TSharedPtr<FString,0> >::OnMouseButtonUp() [stablerow.h:474] UE4Editor_Slate!<lambda_1002768c627006711ef2f351a87ec0e7>::operator() [slateapplication.cpp:5199] UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_1002768c627006711ef2f351a87ec0e7> >() [slateapplication.cpp:232] UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [slateapplication.cpp:5188] UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [slateapplication.cpp:5690] UE4Editor_Slate!FSlateApplication::OnMouseUp() [slateapplication.cpp:5670] UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1718] UE4Editor_Core!FWindowsApplication::DeferMessage() [windowsapplication.cpp:2161] UE4Editor_Core!FWindowsApplication::ProcessMessage() [windowsapplication.cpp:881] UE4Editor_Core!FWindowsApplication::AppWndProc() [windowsapplication.cpp:721] user32!UserCallWinProcCheckWow() user32!DispatchMessageWorker() UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [windowsplatformmisc.cpp:1009] UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3151] UE4Editor!GuardedMain() [launch.cpp:166] UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134] UE4Editor!WinMain() [launchwindows.cpp:210] UE4Editor!__scrt_common_main_seh() [exe_common.inl:253] kernel32!BaseThreadInitThunk() ntdll!RtlUserThreadStart()
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-48973 in the post.
| 0 |
| Component | UE - Simulation - Physics |
|---|---|
| Affects Versions | 4.17 |
| Target Fix | 4.17.2 |
| Fix Commit | 3625003 |
|---|
| Created | Aug 29, 2017 |
|---|---|
| Resolved | Sep 5, 2017 |
| Updated | Apr 27, 2018 |