Unreal Engine Issues
Unreal Engine Issues
PVRTC texture is sampled as white when the uv value is very close to 0
UE - Platform - Mobile - Systems - Oct 20, 2021When the uv value is very close to 0 ( < 0.001 ), the boundary value of the PVRTC texture is sampled as white. please refer to attached images and sample project. problem goes away when changing th ...
Check box appears darker when wrapping it with a button
UE - Editor - UI Systems - Oct 9, 2017Check box appears darker when wrapping it with a button (almost black), This does not appear to happen when wrapped with other widgets. ...
Soft Object Reference Pins can't be reset to None
UE - Gameplay - Blueprint Editor - Dec 10, 2020Soft Object Reference pins on Blueprint nodes can't be reset to None once an object reference has been set. ...
Crash In Material Editor When Previewing A Node
UE - Graphics Features - Nov 3, 2016When previewing a blank texture sampler in the material editor while the HLSL window is open, you can assign a texture to the texture sampler and crash the engine. ...
When the Transform of InstancedStaticMesh is updated, the Random Seed value of PerInstanceRandom is updated.
UE - Graphics Features - Oct 18, 2017When updating Transform of InstancedStaticMesh by UpdateInstanceTransform, PerInstanceRandom used in Material is updated. With 4.16 does not update the RandomSeed value. ...
Noise Node Fails to Compile With Voronoi Noise if Ray Tracing is Enabled
UE - Graphics Features - Jul 19, 2019Noise Node Fails to Compile With Voronoi Noise if Ray Tracing is Enabled. Working as expected in 4.22 CL# 7053642 Found in 4.23 Preview 2 CL# 7321677 and 4.24 CL# 7437539 This is a regression ...
EPixelFormat::PF_R16_SINT does not render correctly for textures
UE - Rendering - Architecture - RHI - Nov 18, 2019Creating a UTexture2D the following way does not properly process gradients in the texture: ------ bool Atexture_test_actor::LoadRawFileTest( /* output */ UTexture2D*& image) { TArray<short> v ...
Crash compiling System when a Dynamic Input only outputs a numeric value
UE - Niagara - Apr 7, 2020Crash compiling System when a Dynamic Input only outputs a numeric value Crash occurs using Scratchpad and a Dynamic Input Script asset. The crash does not occur if I connect a parameter to the s ...
VectorNoise Material Expression Position's tooltip says it accepts 2 or 3 dimensional vectors, but the node raises an error if a Float2 is input
UE - Rendering - Architecture - Materials - Dec 1, 2023Unable to render embedded object: File (image-2023-12-01-12-00-35-167.png) not found. ...
LI Property Override: LI internal references are broken when saving the overrides.
UE - Engine Scaling - Streaming - Level Instances - Dec 4, 2025When Saving the level, ULevelInstancePropertyOverrideAsset::SerializeActorPropertyOverrides will run UStruct::SerializeTaggedProperties to "diff-serialize" each object against its archetype (the LI ...