Crash copying Geometry Cache Track in Sequencer

Geometry cache section  will crash in PostLoad when track is copied. See UDN for alternative repro steps and more info on attached repro project.

1. Import an Alembic file
2. Add the imported GeometryCache asset to a level
3. Create a new level sequence
4. Add the GeometryCache actor to the sequence
5. Add a Geometry Cache track to the actor
6. Right click on the track and select "Copy"

Fatal error!

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000160

0x00007ffa23286051 UE4Editor-GeometryCacheTracks.dll!UMovieSceneGeometryCacheSection::PostLoad() [E:\_Release4.25\Engine\Plugins\Experimental\GeometryCache\Source\GeometryCacheTracks\Private\MovieSceneGeometryCacheSection.cpp:49]
0x00007ffa4d77c272 UE4Editor-CoreUObject.dll!UObject::ConditionalPostLoad() [E:\_Release4.25\Engine\Source\Runtime\CoreUObject\Private\UObject\Obj.cpp:1067]
0x00007ffa4d8817cb UE4Editor-CoreUObject.dll!StaticDuplicateObjectEx() [E:\_Release4.25\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:2110]
0x00007ffa4d88089f UE4Editor-CoreUObject.dll!StaticDuplicateObject() [E:\_Release4.25\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp:1961]
0x00007ffa34e1a5dc UE4Editor-Sequencer.dll!FSequencer::CopySelectedTracks() [E:\_Release4.25\Engine\Source\Editor\Sequencer\Private\Sequencer.cpp:7583]
0x00007ffa34e1aff0 UE4Editor-Sequencer.dll!FSequencer::CopySelection() [E:\_Release4.25\Engine\Source\Editor\Sequencer\Private\Sequencer.cpp:10060]
0x00007ffa34e3a76e UE4Editor-Sequencer.dll!TBaseSPMethodDelegateInstance<0,FSequencer,0,void __cdecl(void)>::ExecuteIfSafe() [E:\_Release4.25\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:374]
0x00007ffa4c1ff238 UE4Editor-Slate.dll!FUICommandList::ExecuteAction() [E:\_Release4.25\Engine\Source\Runtime\Slate\Private\Framework\Commands\UICommandList.cpp:102]
0x00007ffa4c2eab51 UE4Editor-Slate.dll!SMenuEntryBlock::OnClicked() [E:\_Release4.25\Engine\Source\Runtime\Slate\Private\Framework\MultiBox\SMenuEntryBlock.cpp:1059]
0x00007ffa4c2f1320 UE4Editor-Slate.dll!SMenuEntryBlock::OnMenuItemButtonClicked() [E:\_Release4.25\Engine\Source\Runtime\Slate\Private\Framework\MultiBox\SMenuEntryBlock.cpp:1019]
0x00007ffa4c2ca937 UE4Editor-Slate.dll!TBaseSPMethodDelegateInstance<0,SMenuEntryBlock,0,FReply __cdecl(void)>::Execute() [E:\_Release4.25\Engine\Source\Runtime\Core\Public\Delegates\DelegateInstancesImpl.h:298]
0x00007ffa4c36207e UE4Editor-Slate.dll!SButton::ExecuteOnClick() [E:\_Release4.25\Engine\Source\Runtime\Slate\Private\Widgets\Input\SButton.cpp:385]
0x00007ffa4c37b27e UE4Editor-Slate.dll!SButton::OnMouseButtonUp() [E:\_Release4.25\Engine\Source\Runtime\Slate\Private\Widgets\Input\SButton.cpp:304]
0x00007ffa4c2f2a95 UE4Editor-Slate.dll!SMenuEntryButton::OnMouseButtonUp() [E:\_Release4.25\Engine\Source\Runtime\Slate\Private\Framework\MultiBox\SMenuEntryBlock.cpp:386]
0x00007ffa4c1c2dc8 UE4Editor-Slate.dll!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_cc5aea9e7377b04ce85c30c65ec3889b> >() [E:\_Release4.25\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:372]
0x00007ffa4c2469cf UE4Editor-Slate.dll!FSlateApplication::RoutePointerUpEvent() [E:\_Release4.25\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:4675]
0x00007ffa4c22f4b2 UE4Editor-Slate.dll!FSlateApplication::ProcessMouseButtonUpEvent() [E:\_Release4.25\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5198]
0x00007ffa4c222392 UE4Editor-Slate.dll!FSlateApplication::OnMouseUp() [E:\_Release4.25\Engine\Source\Runtime\Slate\Private\Framework\Application\SlateApplication.cpp:5166]
0x00007ffa67327f88 UE4Editor-ApplicationCore.dll!FWindowsApplication::ProcessDeferredMessage() [E:\_Release4.25\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2140]
0x00007ffa67315c87 UE4Editor-ApplicationCore.dll!FWindowsApplication::DeferMessage() [E:\_Release4.25\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:2592]
0x00007ffa6732a619 UE4Editor-ApplicationCore.dll!FWindowsApplication::ProcessMessage() [E:\_Release4.25\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:1816]
0x00007ffa673117d0 UE4Editor-ApplicationCore.dll!FWindowsApplication::AppWndProc() [E:\_Release4.25\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsApplication.cpp:852]
0x00007ffa95f274c6 USER32.dll!UnknownFunction []
0x00007ffa95f26fe2 USER32.dll!UnknownFunction []
0x00007ffa6732bb34 UE4Editor-ApplicationCore.dll!FWindowsPlatformApplicationMisc::PumpMessages() [E:\_Release4.25\Engine\Source\Runtime\ApplicationCore\Private\Windows\WindowsPlatformApplicationMisc.cpp:130]
0x00007ff6b86668c4 UE4Editor.exe!FEngineLoop::Tick() [E:\_Release4.25\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:4762]
0x00007ff6b867ba7c UE4Editor.exe!GuardedMain() [E:\_Release4.25\Engine\Source\Runtime\Launch\Private\Launch.cpp:169]
0x00007ff6b867bb5a UE4Editor.exe!GuardedMainWrapper() [E:\_Release4.25\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:137]
0x00007ff6b868e31d UE4Editor.exe!WinMain() [E:\_Release4.25\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:268]
0x00007ff6b869145a UE4Editor.exe!__scrt_common_main_seh() [d:\agent\_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
0x00007ffa98467974 KERNEL32.DLL!UnknownFunction []
0x00007ffa988ba271 ntdll.dll!UnknownFunction []