Editor crashes when building a level containing landscape if Preview Rendering settings are set to Default High End Mobile.

UE - Graphics Features - Aug 31, 2017

Editor crashes when building a level containing landscape if Preview Rendering settings are set to Default High End Mobile. This is a regression. This is working on 4.16 3-3561208 This is not wor ...

Editor Crashes when turning on Temporal Upsampling on Mac

UE - Graphics Features - Jan 19, 2018

There is an issue occurring where the editor crashes when turning on Temporal Upsampling on Mac. This issue is not a regression as the feature was added in 4.19 Versions tested: 4.19p1 CL - 3837072 ...

Crash when Rendering a Sequence at resolutions higher than 4K with DX12 and Ray Tracing Enabled

UE - Rendering Architecture - RHI - Jul 2, 2019

The Editor will crash when rendering a sequence at 7680x7680 with dx12 and ray tracing enabled. Found in 4.22 CL# 7053642, 4.23 CL# 7208101, 4.24 CL# 7210422 ...

[CrashReport] Mac crash - USpeedTreeImportFactory::FactoryCreateBinary()

Tools - Sep 8, 2017

This is an infrequent Mac crash that has occurred for a few users since at least 4.16. Users have not provided any descriptions of their actions when the crash occurred. The callstack shares simil ...

Attempting to Open a Widget Blueprint With Animation and Timeline Panels Hidden Causes the Editor to Crash

UE - Editor - UI Systems - Nov 11, 2015

When you attempt to open a widget blueprint when you have hidden the animation and timeline panels, the editor will crash. There is a workaround: Window->Reset Layout will allow you to open the blu ...

Crash when rotating and resizing a Background Blur widget

UE - Editor - UI Systems - Feb 16, 2017

If the user rotates a background blur widget and then tries to resize it, this will cause the editor to crash Note: Widget cannot be opened if the widget is saved in this state. ...

ListView crashes when GlobalInvalidation is enabled.

UE - Editor - UI Systems - Slate - Jan 11, 2022

Reverting to the fix in [Link Removed] (CL#17788567) will avoid the crash. ...

Deleting the first instanced subobject entry from a Blueprint map or set variable's default value can result in an editor crash.

UE - Gameplay - Blueprint Compiler - Sep 27, 2021

Deleting the first instanced subobject entry from a default value for a map or set variable can result in accessing an incorrect subobject for the element's value during reinstancing, which can then ...

Using ServerTravel from a map set as the Transition Map with Seamless Travel enabled in the Game Mode will crash the editor

UE - Gameplay - Mar 6, 2015

Using ServerTravel from a map set as the Transition Map with Seamless Travel enabled in the Game Mode will crash the editor. Probably related to [Link Removed] Reproduced in 4.7.2 binary and Main ...

Using GENERATED_BODY() instead of GENERATED_UINTERFACE_BODY() in an Interface code class results in a UHT crash when trying to build the project.

UE - Foundation - Core - Mar 3, 2015

Replacing GENERATED_UINTERFACE_BODY() with GENERATED_BODY() in 4.7.0 or above results in an Unreal Header Tool crash and build failure in Visual Studio. This was working in 4.6.1, but when tested i ...