Crash dragging Sound Wave onto Output node in Newly Created Empty Sound Cue

A licensee has reported a crash when dragging a Sound Wave onto the Output node within the Sound Cue editor.

Regression?

This crash does not occur on the 4.11.2 binary release CL-2946394

1. Download and Open attached project.
2. Open the SoundCue_Test asset
3. Drag the 'Mystical Humming' Sound Wave into and on top of the Output node in the Sound Cue editor graph.

Outcome Crash occurs

Expected The sound wave is placed around the Output node. It could also be auto-connected.

UE4Editor_CoreUObject!CastLogError() casts.cpp:12
UE4Editor_UnrealEd!CastChecked<USoundCueGraphNode,UEdGraphNode>() casts.h:195
UE4Editor_UnrealEd!USoundCueGraphSchema::DroppedAssetsOnNode() soundcuegraphschema.cpp:440
UE4Editor_GraphEditor!SGraphNode::OnDrop() sgraphnode.cpp:350
UE4Editor_Slate!<lambda_d21373bc5354aa11b893894bcf47e418>::operator() slateapplication.cpp:4630
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FPointerEvent,<lambda_d21373bc5354aa11b893894bcf47e418> >() slateapplication.cpp:215
UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() slateapplication.cpp:4621
UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() slateapplication.cpp:5041
UE4Editor_Slate!FSlateApplication::OnMouseUp() slateapplication.cpp:5021
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() windowsapplication.cpp:1510
UE4Editor_Core!FWindowsApplication::DeferMessage() windowsapplication.cpp:1850
UE4Editor_Core!FWindowsApplication::ProcessMessage() windowsapplication.cpp:745
UE4Editor_Core!FWindowsApplication::AppWndProc() windowsapplication.cpp:667
user32!<Unknown>
user32!<Unknown>
UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() windowsplatformmisc.cpp:903
UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:2729
UE4Editor!GuardedMain() launch.cpp:148
UE4Editor!GuardedMainWrapper() launchwindows.cpp:126
UE4Editor!WinMain() launchwindows.cpp:200
UE4Editor!__scrt_common_main_seh() exe_common.inl:264
kernel32!<Unknown>
ntdll!<Unknown>