Transform Track can't be edited for a empty actor dragged directly from Modes panel

UE - Anim - Sequencer - Oct 27, 2017

This is a remaining case of [Link Removed]. If you drag and drop an empty actor from Modes panel to Sequencer, the actor's transform track can't be edited. ...

Material Instance values lost when using Material Parameters inside of multiple Material Functions

UE - Rendering Architecture - Materials - Mar 30, 2018

Material Instance parameters (that derive from parents using material functions) can have their data shifted or not saved. ...

AnimSequence's play rate is doubled when in a SyncGroup

OLD - Anim - May 11, 2018

It is because that the RateScale is multiplied twice. First at UAnimSequenceBase::TickAssetPlayer : {{ const float PlayRate = Instance.PlayRateMultiplier * this->RateScale;}} Second at UAnimSeq ...

SteamVRAssetManager color format mismatch

UE - Platform - XR - May 23, 2018

User requests that TSF_BGRA8 in SteamVRAssetManager.cpp be changed to TSF_RGBA8 to match OpenVR API https://github.com/ValveSoftware/openvr/wiki/IVRRenderModels::LoadRenderModel SteamVRAssetManage ...

ARKit - ARKitCameraMaterial crash

UE - Platform - XR - Apr 12, 2019

Spawning an object with ARKitCameraMaterial will now crash the app. Tested with 2nd Gen iPad Pro (A1701) Verified in 4.23 MAIN @ CL 5806859 (Needed to install from IPA) ...

[Landscape] Multiple Level Instances with Landscape causes duplicate GUID issues.

UE - LD & Modeling - Terrain - Landscape - Jun 18, 2020

Loading the same level twice through Load Level Instance BP Node will cause issues with levels containing Landscape as they will end up with the same GUID and the underlying systems do not support t ...

Audio Capture Component Crashes When Unplugging Mic/Headset

UE - Audio - Jun 9, 2021

Audio Capture Component does not appear to be handling external device swaps appropriately, and has a delayed crash that will occur if an in-use mic is unplugged. At a glance, it appears to involve ...

Shader compilation failure crash with DX12, Tesselation, Distance fields, Instanced Stereo, and Hierarchical LOD Coloration viewmode

UE - Graphics Features - Aug 5, 2021

upd. Regression was checked on //UE4/Release-4.26 CL 15973114, issue wasn't reproduced. Regression - YES Shader compilation failure crash with DX12, Tesselation, Instanced Stereo, and Hierarchical ...

[MetaSounds] - Trigger on Threshold node Crashes editor on play when using literal value for threshold

UE - Audio - MetaSounds - Mar 15, 2022

Editor crashes when Trigger on Threshold node is hooked up in a Metasound graph and played using a threshold value defined on the node. If you use an Input node for the Threshold value, the crash do ...