Crash in Middle of PIE with Level sequences and MRQ running

Repro Rate: 5/5

Tested this a few times and the crash seems to come in at different intervals, some had the prestreaming almost finished, then would crash.

Working on a video to show crash to add to bug. 

1. Open latest City Sample project
2. Enable Cinematic Prestreaming and Movie Render Queue and restart editor
3. Make sure Nanite is enabled (Enter "r.Nanite 1" in cmd console
4. Open Small_City_Lvl from content browser
5. Load a region in World Partition Editor (select region > right click > Load selected region)
6. Add 3 level sequences separately. 
7. Add a camera to each one with a static look at the loaded map.
8. Set each one to only 50 fps in the playback settings
9. Create a new Level sequence(test_root) and add a shot track (select +Track > shot track)
10. Multiselect all 3 test Level sequences and drag and drop into new level sequence
11. Save level sequence
12. Drag the test into Movie Render Queue window 
13. Click on unsaved config and add Prestreaming recorder setting
14. Select "Accept"
15. Select "Render (Local)"

Expected Results: The Prestreaming loads with out a crash 

Actual Result: The crash happens before Prestreaming finishes 

Assertion failed: SkelMesh->GetAnimInstance() [Link Removed] [Line: 125]
 
UnrealEditor_Engine!FAnimSubsystem_SharedLinkedAnimLayers::GetFromMesh() [AnimSubsystem_SharedLinkedAnimLayers.cpp:125]
UnrealEditor_Engine!UAnimInstance::PerformLinkedLayerOverlayOperation() [AnimInstance.cpp:3051]
UnrealEditor_Engine!UAnimInstance::LinkAnimClassLayers() [AnimInstance.cpp:3309]
UnrealEditor_CitySample!UCitySampleAnimInstance_Crowd::LinkAccessoryLayer() [CitySampleAnimInstance_Crowd.cpp:53]
UnrealEditor_CitySample!TBaseUObjectMethodDelegateInstance<0,UCitySampleAnimInstance_Crowd,void __cdecl(void) [DelegateInstancesImpl.h:535]
UnrealEditor_Engine!FTimerUnifiedDelegate::Execute() [TimerManager.h:48]
UnrealEditor_Engine!FTimerManager::Tick() [TimerManager.cpp:933]
UnrealEditor_Engine!UWorld::Tick() [LevelTick.cpp:1576]
UnrealEditor_UnrealEd!UEditorEngine::Tick() [EditorEngine.cpp:1905]
UnrealEditor_UnrealEd!UUnrealEdEngine::Tick() [UnrealEdEngine.cpp:519]
UnrealEditor!FEngineLoop::Tick() [LaunchEngineLoop.cpp:5812]
UnrealEditor!GuardedMain() [Launch.cpp:188]
UnrealEditor!GuardedMainWrapper() [LaunchWindows.cpp:107]
UnrealEditor!LaunchWindowsStartup() [LaunchWindows.cpp:244]
UnrealEditor!WinMain() [LaunchWindows.cpp:284]
UnrealEditor!__scrt_common_main_seh() [exe_common.inl:288]

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