Changing LOD materials on Merged Actors Crashes Editor

UE - Gameplay - Sep 12, 2016

If you merg actors with LODs with the setting LODSelection Type set to "Use all LOD levels" then apply a material to the element 0 assigned to LOD1 the engine will crash. NOTE I wasn't able to rep ...

Crash resizing Cascade window

UE - Graphics Features - Jun 27, 2017

Crash occurs when the user quickly resizes the Cascade window. I was able to reproduce this regularly last week, but I'm not able to do so now. This is related to [Link Removed]. ...

Project Crashes on Open when Implementing An Interface and Its Duplicate

UE - Gameplay - Blueprint - Apr 25, 2016

The linked project crashes on open after attempting to implement an interface and a duplicate of that same interface with different function names. This has not been reproduced in a clean project, h ...

Using a struct to set a button style causes a crash

UE - Gameplay - Blueprint - Mar 17, 2015

If a struct is give a button style as one of its variables and then that variable is in turn used to set the button style of a button widget the editor will crash when trying to save ...

Crash when destroying a Widget Component during the OnAnimationFinished delegate of it's UserWidget

UE - Editor - UI Systems - Nov 4, 2016

UserWidget animations will be ticked as part of the WidgetComponent's DrawWidgetToRenderTarget(). This will lead to a crash when we attempt to set the LastWidgetRenderTime to GetWorld()->TimeSeconds ...

Editor Crashes when creating a function in Child Anim Blueprint

OLD - Anim - Mar 16, 2017

Editor Crashes when creating a function in Child Anim Blueprint. Regression: This issue did NOT occur in 4.13.2 Binary build ...

Blueprint with large amount of macros crashes on compile

UE - Gameplay - Blueprint Compiler - Jan 30, 2018

Blueprint compile is crashing in a BP with a large number of macros ...

Crash when hot reloading after adding HISM Component class

UE - Foundation - Cpp Tools - Hot Reload - May 15, 2017

After adding a class based on "Hierarchical Instanced Static Mesh Component", any attempt to hot reload, from Visual Studio or within the editor, causes the editor to crash. Regression: No - crash ...

Editor crashes while sculpting landscape heavily covered in foliage

UE - LD & Modeling - Terrain - Landscape - Mar 30, 2016

Sculpting a landscape densely covered in foliage crashes editor after freezing. Frequency: 2/2 crashreporter: N/A Additional CrashReporter - [Link Removed] ...

Continuous Crash Problems OSX Upon Save

Tools - Jan 13, 2015

This seems to be a duplicate of JIRA [Link Removed]:https://jira.ol.epicgames.net/browse/UE-7289 User claims the editor crashes every time he goes to save his level or play in editor. Callstack: U ...