Unreal Engine Issues
Unreal Engine Issues
MoverExamples: characters have 1-frame unnecessary extra input latency
UE - Runtime - Character - Mar 6, 2024Due to the way input is handled on the MoverExamplesCharacter, including AnimatedMannyPawn, we have a delay in the time between when an input event occurs and when it is ingested by the movement sim ...
Exporting Mannequin to Blender then Re-importing to UE4 Incorrectly Rotates Animations by 90 Degrees
OLD - Anim - Jun 16, 2015Exporting 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, 2015Animation 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, 2018If 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, 2018Anim 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, 2017This 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, 2017If 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, 2017Note 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, 2017This 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 ...
Control Rig - Undo doesn't function correctly with proxy and multi bone controls
UE - ACT Character - Control Rig - Oct 26, 2025Issue from my Technical Animator where the undo operation in Control Rig doesn't work as expected on Proxy Controls. He has recreated the issue using the "Control Rig Samples Pack" and recorded a vi ...