RGB/UINT10 HDR Format not using ST.2084

UE - Rendering Architecture - RHI - Aug 23, 2021

Specification here: [Link Removed] Which is mirrored in engine in FD3D12DynamicRHI::Init (for example): [Image Removed] However, FWindowsPlatformMisc::ChooseHDRDeviceAndColorGamut always returns ...

Crash when returning to viewport from immersive mode with an editor window tabbed beneath

Tools - Mar 2, 2015

When the user enters immersive mode by hitting f11 and then opens the material editor, (which opens tabbed in the editor underneath the immersive display)The engine crashes when hitting attempting t ...

APEX Destruction works in the Mobile Preview window

UE - Platform - Mobile - Mar 23, 2015

APEX destruction renders when using the Play > Mobile Preview. ...

Using Set World Origin Location will cause the player pawn to stutter

UE - World Creation - Worldbuilding Tools - World Composition - Dec 22, 2016

Using Set World Origin Location will cause the player pawn to stutter. The faster the player is moving, the more prevalent the stuttering becomes. User Description: I have encountered a problem wh ...

Closing editor after quitting a standalone game causes a crash.

UE - Editor - UI Systems - Jan 4, 2022

The editor will produce a crash most of the time when closing editor after quitting a standalone game. This is a regression due to it not occurring in 4.26. ...

LayeredBlendPerBone with BlendRootMotionBasedOnRootBone set incorrectly calculates root motion weightings with more than two sources

UE - Anim - Runtime - May 27, 2023

When BlendRootMotionBasedOnRootBone is true, the code in  FAnimNode_LayeredBoneBlend::Update_AnyThread that calculates the root motion weightings for the sources doesn't appear to account for the po ...

Investigate crash with replication nested ever changing attachments

UE - Networking - May 7, 2024

There seems to be an issue with replicated attachments ending up causing cyclical setups resulting in crash on clients. It was reported for 5.2 but even after patching up code it seems to occur. ...

Capsule component renders incorrectly with non-uniform scale

UE - Simulation - Physics - Jan 30, 2025

Capsule component renders incorrectly with non-uniform scale because the render uses the minimum between the X and Y values and the collision code uses the maximum between the two. This issue is men ...

Struct that is referencing a Custom bp Class will reset to default values on editor restart

UE - Gameplay - Blueprint - Sep 16, 2015

Struct that is referencing a Custom bp Class will reset to default values on editor restart User Description: Making a array of object types in a struct. the goal is to have a struct containing wa ...