In cascade if you add particle LODs then remove, clear the LOD settings array, then attempt to add more LODs (after current) the editor will crash. This crash will only occur if you add LODs after current LOD not if you choose the add before LOD option.
RESULT
Editor will crash
EXPECTED
Particle LOD is added successfully
VCRUNTIME140!memcpy() memcpy.asm:135 UE4Editor_Cascade!TArray<FParticleSystemLOD,FDefaultAllocator>::InsertZeroed() array.h:1267 UE4Editor_Cascade!FCascade::AddLOD() cascade.cpp:3447 UE4Editor_Cascade!TBaseSPMethodDelegateInstance<0,FCascade,0,TTypeWrapper<void> __cdecl() delegateinstancesimpl.h:318 UE4Editor_Cascade!TBaseSPMethodDelegateInstance<0,FCascade,0,void __cdecl() delegateinstancesimpl.h:424 UE4Editor_Slate!FUICommandList::ExecuteAction() uicommandlist.cpp:92 UE4Editor_Slate!SToolBarButtonBlock::OnClicked() stoolbarbuttonblock.cpp:300 UE4Editor_Slate!TMemberFunctionCaller<SToolBarButtonBlock,FReply() delegateinstanceinterface.h:161 UE4Editor_Slate!TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SToolBarButtonBlock,FReply() tuple.h:116 UE4Editor_Slate!TBaseSPMethodDelegateInstance<0,SToolBarButtonBlock,0,FReply __cdecl() delegateinstancesimpl.h:318 UE4Editor_Slate!TBaseDelegate<FReply>::Execute() delegatesignatureimpl.inl:522 UE4Editor_Slate!SButton::OnMouseButtonUp() sbutton.cpp:275 UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator() slateapplication.cpp:5010 UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() slateapplication.cpp:215 UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() slateapplication.cpp:4999 UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() slateapplication.cpp:5462 UE4Editor_Slate!FSlateApplication::OnMouseUp() slateapplication.cpp:5439 UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1652 UE4Editor_Core!FWindowsApplication::DeferMessage() windowsapplication.cpp:2071 UE4Editor_Core!FWindowsApplication::ProcessMessage() windowsapplication.cpp:814 UE4Editor_Core!FWindowsApplication::AppWndProc() windowsapplication.cpp:678 user32!UserCallWinProcCheckWow() user32!DispatchMessageWorker() UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() windowsplatformmisc.cpp:951 UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:2811 UE4Editor!GuardedMain() launch.cpp:152 UE4Editor!GuardedMainWrapper() launchwindows.cpp:126 UE4Editor!WinMain() launchwindows.cpp:202 UE4Editor!__scrt_common_main_seh() exe_common.inl:264 kernel32!BaseThreadInitThunk() ntdll!RtlUserThreadStart()
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-41560 in the post.
| 0 |
| Component | UE - Graphics Features |
|---|---|
| Affects Versions | 4.14.3, 4.15 |
| Target Fix | 4.17 |
| Fix Commit | 3402280 |
|---|---|
| Main Commit | 3461201 |
| Created | Feb 3, 2017 |
|---|---|
| Resolved | Apr 20, 2017 |
| Updated | Apr 27, 2018 |