Unreal Engine Issues
Unreal Engine Issues
Editor Utility Widget - 'Fill Data Table from JSON string' node parsing error
Tools - Nov 24, 2020Issue also occurs in 4.25 therefore not a regression. Original issue was submitted by a user 'Fill Data Table from csv string' node does work though The following is a snippet of the error output ...
Fbx Importer: Make sure the blendshape curve keys have the correct tangent scale
UE - Runtime - Animation - Oct 4, 2021The tangent of the blendshape curve seam to have the wrong scale (but correct direction) from this UDN. https://udn.unrealengine.com/s/question/0D54z000079J03OCAS/skip-compressing-anims-and-buildin ...
Vector addition wildcard does not cast from integer to float (double-precision) when split apart vector pin is utilized
UE - Framework - Blueprint - May 13, 2022Vector addition wildcard does not cast from integer to float (double-precision) when split apart vector pin is utilized. You can also utilize a Vector2D to get the same results. Repro Rate: 3/3 Te ...
Geometry Collection component in BP always visible
UE - Runtime - Deformable - Dec 1, 2022Reproduced 3/3 times, issue does not occur in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed Regression. It's only through the Details panel that this happens; Geometry Collection visibility can ...
Landscape Layer Masks can't be imported
UE - Graphics Tools - Terrain - Landscape - Jan 3, 2023Repro Rate: 3/3 This is a live issue that has been tested to occur in //UE5/Release-5.1 at CL 23058290. This is also confirmed to not be a regression since this issue also occurs in //UE5/Release- ...
FNiagaraRendererMeshes::GetDynamicRayTracingInstances(...) corrupting GPUScene when rendering multiple views
UE - Rendering - Features - Ray Tracing - May 20, 2026When rendering a game in splitscreen using Lumen HWRT, Nanite and a large number of Niagara Mesh Particles 1mil+, various meshes and actors will stop rendering. Setting r.RayTracing.Geometry.Niagar ...
[CrashReport] UE4Editor_UnrealEd!FAssetData::FAssetData() [assetdata.h:107]
Tools - Feb 22, 2018No user comments on crash group ...
Ensure condition failed when destroying a Level Sequence Actor on tick
UE - Anim - Sequencer - Oct 18, 2019In Tick processing of LevelSequencActors of World Tick, If you destroy an actor with an actor's ticks, delete it immediately from the LevelSequencActor array. I think that the problem occurred becau ...
ES2 Fallback Fails on Nougat Devices that do not support Vulkan
UE - Platform - Mobile - Aug 28, 2016Discovered this while doing RC candidate testing for 4.13 Works fine in all other use cases: Nougat devices that support Vulkan Marshmallow devices that support Vulkan Marshmallow devices that don' ...
RebuildRenderData is still not safe during cook time
UE - Gameplay - Paper2D - Apr 21, 2015https://answers.unrealengine.com/questions/215370/some-sprites-tiling-into-tiny-grid-in-packaged-ver.html UTexture2D::ConditionalPostLoad doesn't wait for the render data to finish caching outside ...