Hierarchical instanced static mesh LOD is not consistent between eyes

UE - Platform - XR - Apr 7, 2017

User reports that the issue fixed for ODIN-6308 still occurs for InstancedStaticMeshes. ...

Converting a light to Spawnable removes it from Light Mixer

UE - Anim - Sequencer - Jun 5, 2023

This is a regression as the issue does not occur in //UE5/Release-5.1 @ CL 23901901 ...

Windows SDKs not recognized for HoloLens Development

UE - Platform - XR - Jun 5, 2023

This is a regression as the issue does not occur in //UE5/Release-5.1 @ CL 23901901 ...

Full Body IK does not work properly when root bone has large scale

UE - Anim - Rigging - Control Rig - Jul 20, 2023

FBIK becomes extremely unstable when the root bone scale has a value other than 1. ...

Sequencer- 'Dynamic Binding' SoftObjectPtr parameters fail to resolve after reloading editor

UE - Anim - Sequencer - Aug 12, 2024

When reloading the editor and a level where a sequence has a dynamic binding with a soft object ptr parameter to an actor in the same level, the director blueprint will recompile on load of the leve ...

Launch on to HTML5 fails in browser with Expression (mp_Table) failed in LowLevelMemoryMap.h

UE - Platform - Mobile - Jun 16, 2017

I was able to repro this on both FF and Chrome. I have the latest FF 64-bit and was running into this after I deleted my intermediates, ran GenerateProjectFiles.bat, and built UE4 in VS. ...

Niagara - When a Static Switch is used inside a Niagara Function Script with "expose as pin" disabled, its Selector variable is exposed as an input on function call nodes. However, this input incorrectly loses its "static" type.

UE - Niagara - Apr 7, 2025

Consider a Niagara Function Script containing a Static Switch node with the "Expose as Pin" option disabled for its selector variable. When the function is called by another Niagara Function or Niag ...

Nested inline UObject properties don't expand in Actor blueprint detail panel

UE - Gameplay - Components - May 9, 2016

Customer provides details, including a fix for the problem. See UDN post attached. ...

Folder Renaming is not Case Sensitive

UE - Editor - Content Pipeline - Content Browser - Mar 28, 2018

Renaming folders is not case-sensitive Previously fixed in 4.12, re-appeared ...

"Assign" node can cause a crash when placed in a graph

UE - Gameplay - Blueprint Compiler - Apr 26, 2022

This may only happen with upgraded projects that went from 4.27 up to 5.0.1 ...