PhysX generates extra "sleep" event when moving Kinematic actors away from Simulated actors with Teleport option.

UE - Simulation - Physics - Aug 4, 2016

Issue seems to be related to NpRigidDynamic::setKinematicTarget. When called by itself (like in the case of Kinematic bodies moved without teleportation), the simulated actor is woken and is put ba ...

tvOS is missing prebuilt ssl libraries

UE - Platform - Apple - Apr 4, 2024

tvOS should include the libssl.a libs as part of the install build. ...

Memory leak in FMaterialPSORequestManager

UE - Rendering - Architecture - RHI - Jan 21, 2026

Context: FMaterialPSORequestManager::PrecachePSOs() is called at runtime when an asset utilizing a material is loaded. This occurs during engine init, travel, and when any async or synchronous load ...

(Regression) Risk of PostLoad() assert crash in all cooked, nativized builds with async load thread enabled.

UE - Gameplay - Blueprint - Oct 25, 2018

This is a regression that was introduced by the fix for [Link Removed]. As a result, we can potentially hit an assert in a cooked, nativized build during async load of a non-nativized Blueprint CDO ...

Incorrect number of vertices displayed by ProfileGPU command in Cascade particles

UE - Niagara - Dec 9, 2021

This issue was reported by the licensee, but it's possible that the number of vertices in the particles is higher than it really is. ...

Cmd+W and Cmd+Q Keybindings for Mac Both Close the Editor

UE - Platform - Apple - Feb 16, 2015

While in the Editor with a Mac the user can press either Cmd+W or Cmd+Q to exit. The user on AnswerHub is reporting that the Cmd+W should close an active window or tab, where as the Cmd+Q keybinding ...

On the Details Panel of Niagara Function Inputs, the Type selector does not show "Static" types.

UE - Niagara - Apr 7, 2025

Consider a Niagara Function or Module Script containing a Static Switch node. If the "Expose as Pin" option is enabled for its selector variable, an input pin with type "static bool" appears. In one ...

Vive - PIEVR 'Set World To Meters Scale'

UE - Platform - XR - Sep 4, 2019

GooglePAD ondemand assetpack file packaged redundantly in obb file

UE - Platform - Mobile - Mar 19, 2021

In order to distribute content within GooglePAD's distribution size limit. (1GB for install-time, 500MB for fast-follow, and 500MB for on-demand) we are trying to package it as assetpack by dividing ...