Unreal Engine Issues
Unreal Engine Issues
Add Particle System Component Template Context not functioning
UE - Gameplay - Blueprint - May 4, 2015Also Reproduced in Main Promotable-CL-2535351 In the Add Particle System Component node, there is a Component Template Context input which does not seem to function and establish a template for the ...
Particle light flickering with certain Post Process Settings
UE - Graphics Features - May 23, 2016Particle lights cause flickering when using either FXAA or no AA, but turns into black squares on the screen when you enable Gaussian Blur Regression: Yes, does not occur in 4.10 ...
The getter/setter function bAllowRightClickDragScrolling incorrectly refers to AlwaysShowScrollbarTrack
UE - Editor - UI Systems - UMG - Aug 28, 2023UScrollBox::AlwaysShowScrollbarTrack has its own getter/setter function (SetAlwaysShowScrollbarTrack/IsAlwaysShowScrollbarTrack). In another property for UScrollBox::bAllowRightClickDragScrolling, ...
Ease node not considered Pure function but has no exec pins
UE - Gameplay - Blueprint - Nov 10, 2016Ease node not considered Pure function but has no exec pins. This causes a warning to appear within the compiler results as seen in the attached image. Regression (yes) issue (does not) occur in 4 ...
Light Complexity view mode crashes if there are hair cards in the scene
UE - Graphics Features - Jul 24, 2024The Editor will crash if Groom Hair Cards are viewed with the Light Complexity View Mode. ...
Import with New File option for Anim Sequences does not function
UE - Editor - Content Pipeline - Import and Export - Feb 14, 2022The "Reimport with New Source" functionality is currently not functioning in the Editor. When selecting the option with a clearly edited Anim, it is not updated. There is no message in the Output Lo ...
Any Key key binding is non-functional with Enhanced Input
UE - Gameplay - Input - Oct 19, 2022I've tried implementing BP logic off an EI Event using Any Key, never executes. Tried having the associated Input Action have Consume Input set to true- still nothing. I'm not sure what the expect ...
Landscape editor doesn't find layers in material functions
UE - LD & Modeling - Terrain - Landscape - Nov 17, 2015Comments from Jack: >LandscapeMaterialsParameterValuesGetter calls GetAllParameterNames<> which does handle functiions >ALandscapeProxy::GetLayersFromMaterial should use GetAllParameterNames<> ins ...
LPV Light Propagation Volume does not work in the right eye of the Oculus Rift
UE - Platform - XR - Feb 12, 2015When Using a LPV the lighting that is bouncing is only visible in the left eye. Oculus needed for reproducing this issue ...
Light Leak Issue in Modular Buildings (Lumen HZBTraversal)
UE - Graphics Features - Lumen - Oct 14, 2025Starting in Unreal Engine 5.6, disabling "r.Lumen.ScreenProbeGather.ScreenTraces.HZBTraversal" can lead to light leaking between adjacent or overlapping meshes. Also tested on Release-5.6, CL: 4523 ...