LLM PlatformProcessMemory calculation ignores VRAM, and its calculation of how much memory is used by the process is too low

UE - Core - Systems - Sep 29, 2023

FLowLevelMemTracker::TickInternal() the ELLMTag::Total (and therefore ELLMTag::Untracked) memory amounts are calculated based only on the result of FPlatformMemory::GetStats(), which on the Windows ...

Restricted Gameplay Tags cannot be added

UE - Gameplay - Mar 15, 2024

The Gameplay Tags settings have the option to set up restricted tags as described in the documentation. Prior to 5.3, the UI correctly supported creating new restricted tags as described in the old ...

CreateDynamicMaterialInstance will pull from the base rather than overridden mesh on SkinnedMeshComponent when run from construction script

UE - Framework - Blueprint - Feb 6, 2025

When UPrimitiveComponent::CreateDynamicMaterialInstance is called on a skinned mesh, and the input material is invalid, we call USkinnedMeshComponent::GetMaterial to get the base material on the exi ...

Soft Raytracing Shadows are flickering

UE - Rendering - Features - Ray Tracing - Feb 18, 2025

[Image Removed][Link Removed] ...

Crash in Hand IK Retargeting with two entries under "IKBones to Move"

UE - Anim - Rigging - Feb 28, 2017

Crash in Hand IK Retargeting with two entries under "IKBones to Move" Only seems to happen when you have a hand bone in the second slot of "IKBones to move" ...

Crash when opening a data table based on a struct named actor

Tools - Jun 29, 2016

If the user creates a structure, names it "Actor", then creates a data table based on the struct then the data table will cause a crash on open(opening the data table). ...

Crash when renaming a component to same name as a deleted inherited component.

UE - Gameplay - Blueprint - Oct 24, 2019

Fatal error "UE_LOG(LogObj, Fatal,TEXT("Renaming an object (%s) on top of an existing object (%s) is not allowed"), *GetFullName(), *ExistingObject->GetFullName());" is hit in UObject::Rename.  ...

Crash undoing in Montage editor with no montage sections

OLD - Anim - May 22, 2017

Crash occur in the animation montage editor when the user does an undo action with no montage sections. ...

Cannot Set Visibility for a 3D widget component that is applied to Screen space

UE - Editor - UI Systems - May 5, 2015

User Can hide a 3D widget component that is in world space. However, if they use a widget component that has been switched to Screen space this is no longer possible. List of ways that do not work ...

Steam Overlay does not show in Win64 Shipping builds when run outside of Steam

UE - Networking - Nov 11, 2015

Steam Overlay does not show in Win64 Shipping builds when run outside of Steam. The Steam client can be running, but unless the .exe is opened through Steam itself, the Overlay will not appear. Note ...