Unreal Engine Issues
Unreal Engine Issues
Debug visualizations like 'r.VisualizeOccludedPrimitives 1' don't work in PIE, only in editor
UE - Graphics Features - Feb 9, 2016ApplyAdditive AnimBlueprint node with Slot node is not working correctly.
OLD - Anim - Dec 24, 2015Applying ApplyAdditive node with Additive motion directly on AnimBlueprint works correctly but applying ApplyAdditive node with Slot node playing additive motion is not working correctly that makes ...
LightMap is created exceeding [Packed Light and Shadow Map Texutre Size]
UE - Graphics Features - Lumen - Oct 3, 2019When LightBuild is performed with CornTestBox.umap of EngineTest, 4096 light maps are generated even though [Packed Light and Shadow Map Texutre Size] is 1024. The reason is that the asset's LightMa ...
No dithered lod transition when changing Field of view
UE - Rendering - Architecture - RHI - Nov 26, 2019Input pins are displayed when "StaticSwitch" is used in "Dynamic Input Script" of Niagara
UE - Niagara - Jan 24, 2020The pin is missing the checkbox or dropdown to set the switch value on the function call node. It should only look like the screenshot if the switch value is propagated to the next higher caller. ...
Users are crashing on launch. D3D11 errors
UE - Graphics Features - Jun 23, 2015Users are experiencing this crash on launch. They all appear to have identical machines for the most part. They've tried different GPU's though. See the additional info URL [Link Removed] [Link ...
Mouse Events cannot be treated as Touch on Android Apps on Chromebook
UE - Platform - Mobile - Mar 18, 2019A licensee reported an issue where mouse events are not able to be used as touch events on Android apps. This was specifically reported on and tested on Chromebooks. After working with Chris Babcock ...
Copying an InstancedStaticMeshComponent does not render correctly
UE - Editor - Nov 6, 2020Material cannot be set in MaterialInterface of NiagaraParameterCollection
UE - Rendering - Architecture - Niagara - Apr 16, 2021When MaterialInterface is added to UserParameter of NiagaraSystem, Material can be set in Properties. Also, in UE4main CL15988344, there is no MaterialInterface item in the NiagaraParameterCollecti ...
Applying downscale causes textures to display unexpectedly on widgets
UE - AI Workflows - UI Systems - Slate - Sep 22, 2025When applying downScale 2.0 to UI textures to reduce resolution, unintended display issues occur on widgets, such as: ・The border of box-shaped Widgets with DrawAs set to “Box” becomes thinner ・Dot ...