# My editor crashes randomly - logs say !Primitive-\>Bounds.BoxExtent.ContainsNaN()

**URL:** <https://forums.unrealengine.com/t/my-editor-crashes-randomly-logs-say-primitive-bounds-boxextent-containsnan/456448>\
**Category:** Pipeline & Plugins\
**Tags:** unreal-engine, crash, bounds, editor, question\
**Created:** [October 4, 2019, 11:55pm UTC](https://forums.unrealengine.com/t/my-editor-crashes-randomly-logs-say-primitive-bounds-boxextent-containsnan/456448 "2019-10-04T23:55:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![noblweb](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@noblweb](https://forums.unrealengine.com/u/noblweb)\
**Post date:** [October 4, 2019, 11:55pm UTC](https://forums.unrealengine.com/t/my-editor-crashes-randomly-logs-say-primitive-bounds-boxextent-containsnan/456448/1 "2019-10-04T23:55:50Z")

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I’m developing a big 4x4km openworld RPG. I can’t pinpoint the exact time that testing the game started crashing my editor (or my GPU) - screen goes dark, can still hear PC humming but can’t do anything - have to restart PC.

It happens only after testing the game a few times, or working in the editor for a long time, then testing. I feel like something is building up and then reaches its limit and shuts down. BUT WHAT?? How can I tell from this mumbo jumbo what is causing the crash?

Any help is greatly appreciated 🙂

–

[2019.10.04-23.38.38:992][292]LogStats: FPlatformStackWalk::StackWalkAndDump - 0.618 s  
[2019.10.04-23.38.38:993][292]LogOutputDevice: Error: === Handled ensure: ===  
[2019.10.04-23.38.38:993][292]LogOutputDevice: Error:  
[2019.10.04-23.38.38:993][292]LogOutputDevice: Error: Ensure condition failed: !Primitive-\>Bounds.BoxExtent.ContainsNaN() && !Primitive-\>Bounds.Origin.ContainsNaN() && !FMath::IsNaN(Primitive-\>Bounds.SphereRadius) && FMath::IsFinite(Primitive-\>Bounds.SphereRadius) [File:D:\Build++UE4\Sync\Engine\Source\Runtime\Renderer\Private\RendererScene.cpp] [Line: 1187]  
[2019.10.04-23.38.38:993][292]LogOutputDevice: Error: Nans found on Bounds for Primitive LandscapeSplinesComponent\_0: Origin X=-nan(ind) Y=-nan(ind) Z=-nan(ind), BoxExtent X=nan Y=nan Z=nan, SphereRadius nan

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**Author:** ![noblweb](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@noblweb](https://forums.unrealengine.com/u/noblweb)\
**Post date:** [October 6, 2019, 9:00pm UTC](https://forums.unrealengine.com/t/my-editor-crashes-randomly-logs-say-primitive-bounds-boxextent-containsnan/456448/2 "2019-10-06T21:00:52Z")

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I should add I have no Landscape Splines Components which makes the message even more confusing.