Performance regression from 4.10 to 4.11 on Sony Xperia M4 Aqua

UE - Platform - Mobile - May 27, 2016

User reports that on the Sony Xperia M4 the FPS have decreased from about 25 down to 5 after upgrading to 4.11. ...

SSR not rendering correctly in SM4 Preview

UE - Graphics Features - Sep 20, 2017

This is a regression from 4.17.2 and you do not need to be in PIE to see the effect. This is not seen in Shader Model 5 ...

Enable Slate layout caching Will cause the Stop/Play Buttons to disappear

UE - Editor - UI Systems - Slate - Dec 17, 2018

When using the command Slate.EnableLayoutCaching 1, The Play button is removed from the tool bar after exiting play. ...

Hair shading emits light when Lumen is enabled

UE - Graphics Features - Jun 6, 2022

This artifact does not occur when Lumen is disabled. Also, moving Roughness closer to 1 will reduce the effect. ...

Lightmap density view mode displaying zfighting when moving around in the viewport

UE - Graphics Features - Oct 10, 2022

assets within the FPS template are showing zfighting when in Lightmap density mode not reproduceable in 5.0  ...

Sequencer: Undoing creation of a new section can call section drawing code with viewmodel tree in invalid state

UE - Anim - Sequencer - Aug 1, 2024

The Section reference in ISequencerSection::GetSectionHeight can be in the process of garbage collection during an undo of a section addition- this causes things like GetTypedOuter<UMovieSceneTrack> ...

Expose Component Replication in ActorComponent

UE - Gameplay - Aug 9, 2016

UActorComponent has hideCategories=(ComponentReplication) set in the UClass macro preventing uint32 bReplicates:1; to be set as a default setting. ...

GearVR crash with material using Fresnel or WPO on Snadragon S7

UE - Platform - Mobile - May 19, 2016

Talking with ChrisB, this has been passed to Samsung and Qualcomm for investigation with the Signal 11 crash. This only affects the Snapdragon S7 devices. ...

Setting Alpha on RigidBody node results in bone displacement

UE - Simulation - Physics - Jan 31, 2017

If the user sets the Alpha channel on the RigidBody node to something between 0 and 1, this can result in some bone displacement. ...

[CrashReport] CastChecked<UAnimBlueprint,UBlueprint>()

OLD - Anim - Jul 14, 2017

This is a common crash affecting users in 4.16. Users have not provided additional information. Source context not available ...