New key value pairs added to a data table are not able to be found until the project is reloaded

UE - Gameplay - Dec 13, 2019

Adding a new key to a dataTable deriving from c++ will not be found until the entire project is reloaded. Download link to test project: https://github.com/sorkNasrk/testbug ...

Setting Key Interpolation for a point on a curve to Auto behaves differently from UE4 and more like User Interpolation

UE - Anim - Runtime - Mar 17, 2022

Setting Key Interpolation for a point on a curve to Auto behaves differently than it did in UE4. The results are more akin to the User Interpolation with flat tangents. ...

Shadows remain visible for Procedural Foliage Instances that are culled out

UE - World Creation - Worldbuilding Tools - Foliage - Aug 20, 2016

Watching GIF displayed in test case, the shadows disappear with the meshes. ...

HDR values are not updating in Pixel Inspector

Tools - Jan 5, 2017

HDR setting in the Pixel Inspector does not update with the color you hover over. The color bar should update similar to Final Color settings and value of Luminance setting should update as well. ...

Procedural Mesh Component 'Create StaticMesh' does not preserve collision

UE - LD & Modeling - Modeling Tools - Mesh Editing - Nov 5, 2019

Creating a static mesh from a procedural mesh does not preserve simple collision or collision settings. ...

Evaluate WPO for Foliage(HISM) is based on Local Space?

UE - Graphics Features - Lumen - Aug 21, 2021

Dithered LOD transitions sometimes briefly flicker to the next LOD before fading

UE - Rendering - Graphics Features - Jun 12, 2025

When dithered LOD transitions occur, a brief flash of the next LOD level is first shown on the entire mesh after which the current LOD fades to the next (or previous) LOD. The flashing behavior only ...

Custom fallback mesh LODs for Nanite-enabled meshes not working

UE - Rendering - Graphics Features - Sep 15, 2025

Creating a custom fallback mesh with LOD for Nanite-enabled meshes with multiple materials, results in mesh LODs with errors. As the number of material sections (material slots) decreases with coars ...

VirtualTextureStreamingPriority cannot be set per TextureLODGroup

UE - Rendering - Architecture - Dec 11, 2025

It is currently not possible to set a VirtualTextureStreamingPriority via the TextureLodGroups that are defined in a device profile. ...

UMG curve editor values are set to 0 when dragging a set value

UE - Editor - UI Systems - Jul 10, 2015

An example of this issue would be that after setting the color and opacity setting along the time line and then trying to click and drag that key frame it will set the value for the currently select ...