Loading Duplicated Level via Python API Crashes Editor

UE - Editor - Workflow Systems - Feb 16, 2023

When called from Python, in 5.1 the load level invocation results in a kernel panic style crash of the editor, with a message about the map leaking memory and not being able to be garbage collected ...

Ensure triggers when undoing change to newly created variable

UE - Gameplay - Blueprint - Sep 28, 2018

Ensure will trigger when undo reverts text to default value. "This triggers an ensure because the undo ends up calling SKismetInspector::ShowDetailsForObjects(), which forces the keyboard focus to ...

Failed to register input back buffer crash when opening a project with PixelStreaming on Windows 7

PixelStreaming - Sep 19, 2018

Projects crash upon opening with the PixelStreaming plugin enabled. ...

Setting max undilated frame time to a negative value crashes the editor

UE - Gameplay - Apr 6, 2018

In the world settings of any level, changing the max undilated frame time to a negative number results in the editor crashing. ...

Collision for bsp stays in level after bsp is deleted

UE - LD & Modeling - Modeling Tools - BSP - Jun 30, 2015

If a bsp brush is deleted from a level, the level has geometry built, and the user presses play then uses the "show collision" console command, the collision for the bsp wlil still appear. This does ...

User cannot undo the automatic changing of Mobility settings

Tools - Sep 12, 2016

When the users causes a component to automatically change its Mobility setting by changing that setting on a parent or child component, undoing that change only affects the manual change caused by t ...

[CrashReport] MetalRHI crash - void FForwardLightingParameters::Set<FRHICommandList, FRHIPixelShader*>

UE - Graphics Features - Jul 20, 2017

This is a common crash affecting Mac users in 4.16. User DescriptionsI tried to build the lighting and it keeps crashingWhenever I attempt to build the project or change the preview rendering to IO ...

Locked actors still moveable in VR Editor

UE - Editor - Workflow Systems - Jan 22, 2018

Actors that are locked in the regular editor are able to be moved in VR Editor. Reproduced in 4.17.2 CL 3658906, 4.18.2 CL 3794801, and 4.19.0 P1 CL 3837072 ...

[Landscape] Collision Object Type Requires WorldStatic to Paint Foliage

UE - World Creation - Worldbuilding Tools - Foliage - Feb 27, 2018

No longer able to paint foliage when new Collision Object Type is applied to the landscape. Reproduced in 4.17.2 CL 3658906, 4.18.3 CL 3832480, and 4.19 P5 3898826 ...

Phantom Collision with Default Engine Cube Statich Mesh

UE - Simulation - Physics - Jul 7, 2018

The default engine cube meshes collision appears to be incorrect an causing a phantom collision. Found in 4.19 #CL 4033788, 4.20 Preview 5 CL# 4173040, 4.21 CL# 4188563 ...