Unreal Engine Issues
Unreal Engine Issues
Blueprint editor can crash on removing one of a Sequence node's exec pins
UE - Gameplay - Blueprint Editor - Dec 22, 2023User reported that upon removing a pin from a Sequence node the editor crashed. This only happened once, so may be a multithreading race condition or there may be additional unknown factors. The cra ...
HiddenInGame issues with Nanite enabled meshes
UE - Graphics Features - Nanite - May 15, 2024Nanite meshes marked Hidden in Game do not have selection outlines in the editor. ...
WindowsVideoRecordingSystem can start late to record when a Record/Start action is executed.
UE - Media Framework - May 30, 2024The WindowsVideoRecordingSystem can start to record late when a StartAction is done. Not sure if it starts to record late, or the first seconds of the resulting video are ommited when the mp4 file i ...
Draw Invalidating Bounds debug view mode for Virtual Shadow Maps is gone in 5.4
UE - Graphics Features - Shadows - Jun 9, 2024The CVar "r.Shadow.Virtual.Cache.DrawInvalidatingBounds" referenced in the official 5.4 documentation for virtual shadow maps, no longer shows any bounds as the underlying code seem to be removed in ...
Reimport with new file does not work for Datasmith files if the Interchange flag is enabled.
TM - Interoperability - Jan 31, 2024Using Custom Primitive Data as Final Colour in a UI Material crashes the engine with a missing uniform buffer
UE - Rendering Architecture - Materials - Jul 3, 2024Using custom primitive data as an input in a UI material causes the engine to crash in the RHI thread. The exact crash is "Missing uniform buffer at slot 1, stage SF_Pixel." at Engine\Source\Runtime ...
PrimitiveSceneProxy CreateSceneProxy override not working in 5.4
UE - Rendering Architecture - Aug 30, 2024Overriding CreateSceneProxy function from PrimitiveSceneProxy for a custom class no longer renders in 5.4 even though the same code is working in 5.3. ...
Editor/Game Ensure hit with RayTracing enabled on AMD GPU
UE - Graphics Features - Ray Tracing - Feb 4, 2025A Static Mesh asset will trigger an ensure when generating building the ray tracing acceleration structure on AMD GPUs. ...
5.4, FRHIMemoryPool leaks memory
UE - Rendering Architecture - RHI - Feb 12, 2025FRHIMemoryPool will leak data when it is destroyed. "FRHIMemoryPool::Init()" will create "FRHIMemoryPool::DesiredAllocationPoolSize" new "FRHIPoolAllocationData" objects, stored in "FRHIMemoryPool: ...
FX.TestGPUSort fails on Vulkan
UE - Niagara - May 5, 2025“FX.TestGPUSort” fails on both PC Editor and Android with Vulkan RHI. ...