Unreal Engine Issues
Unreal Engine Issues
When playing matinee, scrubbing can cause sound to keep playing when it isn't triggered
UE - Audio - May 31, 2016When playing matinee, scrubbing can cause sound to keep playing when it isn't triggered Note: This was entered as a bug to re-work the fix from the pull request found here: [Link Removed] ...
RecreateLandscapeCollision console command regenerates collision over landscape holes
UE - LD & Modeling - Terrain - Landscape - Feb 13, 2015Using console command 'RecreateLandscapeCollision' resets collision in areas that landscape hole materials have been placed. Workaround: paint new hole material to re-remove collision from areas w ...
Shift+Tab does not bring up Steam overlay when Steam VR is running
UE - Online - Mar 14, 2017Shift+Tab does not bring up Steam overlay when Steam VR is running ...
[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 ...
Copy and paste State in the state machine do not correctly refresh synced objects when it have transition rule(fraction)
OLD - Anim - Apr 12, 2017Copy and Paste action in State machine do not generate correct info for "AnimGraphNode_SequencePlayer_20" Name for "AnimGraphNode_SequencePlayer_#" in the duplicated state is not changed to corresp ...
Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point
UE - Editor - May 3, 2022Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point Repro Rate: 4/4 Tested this in //UE4/Release-4 ...
TInstancedStruct used in native actor class loses reference to Instanced UObject after BP recompilation
UE - Framework - Blueprint Compiler - Jun 25, 2025When a TInstancedStruct contains a UObject marked with EditInlineNew and DefaultToInstanced, the reference is lost after compiling the Blueprint but only when the struct is part of a native Actor cl ...
UInstancedStaticMeshComponent::AddInstances does not appear to be adding per-instance previous transforms when enabled
UE - Rendering - Graphics Features - Dec 3, 2025Instanced static mesh component does not add instances transforms to PerInstancePrevTransform array when using UInstancedStaticMeshComponent::AddInstances. Additionally Updating the transforms of th ...
Grass draws on landscape holes
UE - LD & Modeling - Terrain - Landscape - Jul 14, 2015Grass output in materials draws over masked locations, such as landscape visibility holes. ...
Landscape Grass Type will not build with static lighting leaving 'Lighting needs to be rebuilt warning.'
UE - World Creation - Worldbuilding Tools - Foliage - Sep 3, 2015When using the Landscape Grass Type and using a Static or Stationary light will throw the 'Lighting needs to be rebuilt' warning. ...