4.20 packaging fail / crashes randomly in editor

Development Platform & Builds
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1

I can’t seem to package / and it will randomly crash if it is just open and I’m not even touching computer - I opened it a half hour ago to work on it and before I could even do anything it crashed
these errors don’t show up in google or answerhub at all so I have no idea where they originate from - the level isnt that big -
Sequencer also failed last night on an output - i’m gonna check where it crashed to see if that gives me any indication on materials but my materials are not that complicated unless they are from the marketplace but those should have been made by someone who knows way more than i do so I have no hope of discerning if it is the issue . Any help would be great was suppose to deliver a demo at a Vr thing but gonna fail to do it because of this been trying to solve for 3 days now .

0]LogOutputDevice: Error: === Handled ensure: ===
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error:
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: Ensure condition failed: false [File:D:\Build++UE4\Sync\Engine\Source\Runtime\Engine\Private\PrimitiveSceneProxy.cpp] [Line: 696]
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: PrimitiveComponent tried to render with Material MaterialInstanceDynamic_0, which was not present in the component’s GetUsedMaterials results
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: Owner: BP_Particle_Snow_13, Resource: P_Snow
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: Stack:
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9ac5d71f6 UE4Editor-Core.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9ac310c92 UE4Editor-Core.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9ac32b356 UE4Editor-Core.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99eb21f89 UE4Editor-Engine.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99eb3bf44 UE4Editor-Engine.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99e911b40 UE4Editor-Engine.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99e9696df UE4Editor-Engine.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99819d41d UE4Editor-Renderer.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9981847c4 UE4Editor-Renderer.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9981ac690 UE4Editor-Renderer.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff997bd671a UE4Editor-Renderer.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff998125c26 UE4Editor-Renderer.dll!UnknownFunction []
[2018.10.04-16.28.07:617][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9981260ca UE4Editor-Renderer.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99812752c UE4Editor-Renderer.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99e1caed6 UE4Editor-Engine.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9980a92f3 UE4Editor-Renderer.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99b002319 UE4Editor-UnrealEd.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99eeba3ca UE4Editor-Engine.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99ed27443 UE4Editor-Engine.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99ed13fbd UE4Editor-Engine.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b0ea4ad5 UE4Editor-Slate.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297c289 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297c289 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b0e9f50b UE4Editor-Slate.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297c8a6 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297c289 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297c289 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b0e9efcd UE4Editor-Slate.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297c8a6 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297ec31 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297ca04 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297c289 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297ec31 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b0ea438e UE4Editor-Slate.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297c8a6 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297c289 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297ec31 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297ca04 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297ec31 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297ca04 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297c8a6 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297c289 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297caaa UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b297e063 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b0c3d5bc UE4Editor-Slate.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b0c3e709 UE4Editor-Slate.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b0c7367f UE4Editor-Slate.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b0c6c384 UE4Editor-Slate.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9d78bcd00 UE4Editor-ApplicationCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9d78b0270 UE4Editor-ApplicationCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9d78be229 UE4Editor-ApplicationCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9d78ac209 UE4Editor-ApplicationCore.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa181a6cc1 USER32.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa181a699c USER32.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa181b0453 USER32.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa18ecdc04 ntdll.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa15201164 win32u.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa181a61d6 USER32.dll!UnknownFunction []
[2018.10.04-16.28.07:618][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa181a474c USER32.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa181a3e52 USER32.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa132e4704 uxtheme.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa132e34e1 uxtheme.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa181a4394 USER32.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9d78be538 UE4Editor-ApplicationCore.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9d78ac209 UE4Editor-ApplicationCore.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa181a6cc1 USER32.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa181a699c USER32.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa181b4c10 USER32.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa18ecdc04 ntdll.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa15201b64 win32u.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9d78c9639 UE4Editor-ApplicationCore.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9b29a5711 UE4Editor-SlateCore.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9cf47f4be UE4Editor-MainFrame.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff9cf465c3e UE4Editor-MainFrame.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff99b85c2d4 UE4Editor-UnrealEd.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff600a05a34 UE4Editor.exe!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff600a05bba UE4Editor.exe!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff600a13dac UE4Editor.exe!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ff600a15aaa UE4Editor.exe!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa18513034 KERNEL32.DLL!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error: [Callstack] 0x00007ffa18ea1461 ntdll.dll!UnknownFunction []
[2018.10.04-16.28.07:619][ 0]LogOutputDevice: Error:

2

The first clues I see in your log output are:

  1. “Error: PrimitiveComponent tried to render with Material MaterialInstanceDynamic_0, which was not present in the component’s GetUsedMaterials results”
  2. “Error: Owner: BP_Particle_Snow_13, Resource: P_Snow”

I can’t be entirely sure, but those two issues (near the top of the call stack) seem to suggest there’s a particle system blueprint called “BP_Particle_Snow_13” in your level that’s attempting to use a dynamic material instance of some sort, but failing in a critical way.

Try to find that blueprint and open up its graph. Look for any graph nodes that pertain to dynamic material instances, and try to debug from there.

Or, a simpler workaround might be to just remove that blueprint from your level for now. If you choose to go this route, make sure you remove all instances of that particular blueprint from your level — there’s probably more than one. If removal prevents the crash from reoccurring, then you know that specific blueprint is the culprit.

Good luck with the debugging!