Unreal Engine Issues
Unreal Engine Issues
Can't fire custom event of event track when enabled auto scroll.
UE - Anim - Sequencer - Jan 28, 2020If Auto Scroll is enabled, event track can't trigger, so events may not fire. The frame numbers appear to be duplicated. Especially noticeable when the [View Range End Time] is small value (Working ...
InitSDL() failed error when launching onto Linux
UE - Platform - Linux - Jan 22, 2021When launching onto Linux, the launch on fails Also tried launching on with QA-Promotion, still failed with same error, ruling out water ...
When creating an asset from an Emitter with a scratch module, changes to the new module will not propagate
UE - Niagara - Jun 21, 2021A scratch module made in an emitter, will not reflect the changes of its new parent when an asset is crated from the emitter. ...
Root Bone Rotated Incorrectly in Default Animations
UE - Anim - Rigging - Sep 18, 2015In the Mannequin's default third person animations, the root bone is rotated Z forward/Y down resulting in IK's for hands and feet not aligning correctly. The result being that the joints that are ...
[CrashReport] UE4Editor_Engine!UHierarchicalInstancedStaticMeshComponent::BuildTreeIfOutdated
UE - World Creation - Worldbuilding Tools - Foliage - Jun 8, 2017This is a common crash occurring in the 4.16 release. It seems to be related to applying a material to a mesh that is being used in Foliage. Crash Reports are spread out among many different Crash ...
Use Mouse for Touch leads to fire Released and Clicked with Pressed at the same time for UMG Button
UE - Editor - UI Systems - Nov 23, 2018Pressed, Released and Clicked should be fired in the same manner w/wo Use Mouse for Touch option. These three events are fired at the same time when enabling the option. [Image Removed] ...
UForceFeedbackEffect is only making slight vibration in iOS when value rises from 0 or effect is started.
UE - Platform - Mobile - Jun 11, 2019UForceFeedback is expected to give vibration just like in the graph of the asset. But only in iOS it is not. It is expected to give continuous vibration following the forcefeedback asset, but only ...
Cascade particle system crash when changing levels in a cooked game
UE - Niagara - Jan 6, 2021Changing levels with an auto-released particle system will cause cooked builds to crash. This is a regression. This crash does not occur in 4.25 ...
Lumen ignores Landscape Holes (Landscape Visibility) when Hardware Ray Tracing is enabled and Ray Lighting Mode is set to Surface Cache
UE - Graphics Features - Ray Tracing - Jan 31, 2025Context Lumen is the default global illumination and reflections system. Lumen renders diffuse interreflection with infinite bounces and indirect specular reflections in large, detailed environments ...
Project upgrade to 4.15 does not complete if the Runtime Mesh Component is installed in version 4.14 and not in 4.15
UE - Foundation - Core - Apr 17, 2017If the Runtime Mesh Component is installed in the 4.14 Binary Engine, upgrading a copy of a code project from 4.14 to 4.15, even if it does not use that plugin, will result in the upgrade process ha ...