Exporting Mannequin to Blender then Re-importing to UE4 Incorrectly Rotates Animations by 90 Degrees

OLD - Anim - Jun 16, 2015

Exporting the UE4 Mannequin to Blender then re-importing to UE4 breaks the animations, causing them to reimport rotated 90 degrees ...

Animation Orientation does not Auto-Convert to UE4 Coordinates when Reimporting

OLD - Anim - Nov 23, 2015

Animation orientation does not auto-convert to UE4 coordinates when reimporting the same way it does when importing the same animation as a new import. In other words, a run animation generated from ...

Crash Upon Sequencer Modification of Actor's Array Variable

UE - Anim - Sequencer - Dec 7, 2018

If Sequencer event track modifies an Actor's Integer Variable Array that is exposed to Cinematics, the Editor will crash when the Stop button is pressed. ...

Anim Notify blueprints are included in packages when not referenced

UE - Foundation - Core - Cooker - Sep 17, 2018

Anim Notify Blueprints are included in Packaged builds of the editor even if they are not referenced. This does not occur with other Blueprint classes, such as Actor, although it may with some other ...

(Undo Crash in BPs) [CrashReport] UE4Editor_Core!rml::internal::Block::findObjectSize()

UE - Gameplay - Blueprint - Jul 25, 2017

This is a trending crash in the 4.17 Preview. There was one occurrence of this callstack months ago in 4.15.1, but a number of recent ones in 4.17. User DescriptionsI was pressing cltr+z severl ti ...

Crash when unplugging the Oculus Rift HMD while level is loading

UE - Platform - XR - Jan 12, 2017

If the user unhooks their Oculus HMD (USB cable) from the PC while a level is loading the editor will crash ...

Ensure when using Ctrl Z to undo painted landscape - UE4Editor_Engine!FPrimitiveSceneProxy::VerifyUsedMaterial() primitivesceneproxy.cpp:599

UE - LD & Modeling - Terrain - Landscape - Feb 9, 2017

Note This is a one off crash, that I was not able to reproduce it again. Quickly changing the materials on landscape by painting and undo-ing seems to create this rendering crash ...

Engine Crashes When Previewing ES3_1 With Material Using World Position Offset (Need Custom Stencil)

UE - Platform - Mobile - Feb 15, 2017

This crash will only occur when this criteria is met.You have enabled custom depth with stencils in the project settingsA mesh in the scene is rendering to custom depth with a stencil value of 1The ...

Duplicating blueprint instances in a level with added components causes instance to lose component hierarchy

UE - Gameplay - Components - Jan 28, 2019

Duplicating Blueprint Actor instances in a level with added Actor components causes instance to lose component hierarchy. ...

[CrashReport] Assertion failure in NameTypes.h after CookOnTheFly

UE - Foundation - Core - Apr 25, 2017

This is a top crash occurring for users in the 4.14 and 4.15 releases. Unfortunately no user-descriptions of the issue have been provided, so information is limited. Despite a different callstack, ...