Crash on UObject::ProcessEvent after 4.7 update

UE - Editor - UI Systems - Feb 27, 2015

Crash Report [Link Removed] Bugg 38910 After updating project from 4.6.1 to 4.7, user experiences unexplained crash when playing in editor. *In addtion to the crash report, the user provides a lot ...

Crash Occurs on Exiting Standalone After Using DemoPlay

UE - Networking - Mar 2, 2017

Using Execute Console Command nodes to record and play back a demo is causing a crash in standalone. Using the console commands themselves does not seem to cause the same crash to occur. ...

Crash when generating mip maps for texture

UE - Graphics Features - Dec 23, 2019

Generating mip maps results in crash and seems to duplicated 1x1 mip level. NOTE: The bug was originally reported in 4.23.1, however, for some reason I was able to open the texture in 4.23.1 afte ...

Crash undoing variable change in Animation Blueprint.

OLD - Anim - Aug 1, 2016

Crash occurs when the user changes a variable in the animation blueprint, and then undo's the change. Note that this occurs with any variable being used, but the callstack will be some what differe ...

VR Preview Crash when using split screen

UE - Platform - XR - Jun 3, 2016

If the user tries to use split screen in the editor along with VR preview, the editor will crash ...

Crash when trying to swap out a material with in a merged actor with LODs

Tools - Sep 20, 2016

Crash when trying to swap out a material with in a merged actor with LODs. The editor crashes when trying to change the material for the merged actor with LODs ...

Crash when deleting mesh instances of a HISM component

UE - World Creation - Worldbuilding Tools - Foliage - Apr 24, 2019

When trying to delete an existing (and saved) mesh instance from a Hierarchical Instanced Static Mesh component the Editor crashes due to a failed assertion, however clearing all instances does not ...

Assertion occurs when undoing a Child State's unparenting from another Child State in AI State Trees, leading to a crash.

UE - AI - StateTree - Apr 15, 2022

Assertion occurs when undoing a Child State's unparenting from another Child State. Repro Rate: 5/5Assertion failed: false [File:D:\build\++UE5\Sync\Engine\Source\Runtime\Slate\Public\Widgets\Views ...

Users custom AI-heavy project crashes if anything is Built

UE - Gameplay - Feb 2, 2015

Users custom AI project crashes if anything is Built. (All, Lighting, Geometry, etc.) The project can be played but receives a message during play that the Navmesh needs to be rebuilt. ...

Editor Crash with corrupted asset when opening within level or via the content browser.

Tools - Jan 5, 2017

Editor will crash when a skeletal mesh has been added to a level and then reopening the project later if you try and access this level. If you attempt to open the skel meshes in the content browser ...