Enabling Tonemapper via console command causes a black screen when Mobile HDR and Bloom are enabled on Android

UE - Platform - Mobile - Dec 7, 2018

Enabling Tonemapper on Android with Mobile HDR and Bloom enabled causes the entire screen to go black, other than HUD and UMG elements. This seems to occur on older phones, as this occurred on a Ne ...

When Both AnimMontage and AnimationTrack are Playing, the Blending Results are Different from Expectation

UE - Anim - Sequencer - Dec 11, 2018

When Slot animation by AnimMontage and AnimationTrack is done at the same time, the blend result differs from expectation. Probably because if AnimMontage's loop playback by EventTrack is executed, ...

BuildGraph builds some tools for Win32 even if Win32 is excluded from the build

UE - Foundation - Cpp Tools - Jan 16, 2019

When creating a local binary build of the Engine using the BuildGraph, there are several tools that are built for Win32 even if Win32 was specifically excluded from the BuildGraph (ie. -set:WithWin3 ...

Undetected infinite loop on spline creation

UE - Gameplay - Blueprint Compiler - Mar 16, 2019

It is possible to create spline logic that will not be detected by infinite loop detection. Also hangs if executed in Event Graph on Begin Play. If saved but not compiled and placed in Editor Star ...

Mobile VR - Render Targets not working with Mobile Multi-View

UE - Platform - XR - Jun 6, 2019

Render target materials display as black on mobile VR when Mobile Multi-View is enabled. Also confirmed with LDR capture source. User also reports issues with scene depth (potentially fixed with [ ...

Skeletal mesh LOD 0 "LOD Info" loose their settings when we reimport

UE - Editor - Content Pipeline - Import and Export - Mar 6, 2020

Set critical because loosing settings is dangerous. This is not a regression, the bug is in 4.22 and earlier version. We have to save all options of the LODInfo, currently nothing is saved. Also sh ...

Crash spawning actor with instance editable gameplay tag property that was changed inline

UE - Foundation - Core - UObject - May 6, 2020

REGRESSION Does not occur in 4.24 Crash occurs if the user spawns an actor with an instanced editable Gameplay Tag node that was changed on the spawn node. Another user reported this happening wit ...

Crash when opening OculusVRDartsGame without oculus software installed

UE - Online - Oct 6, 2020

Several users have reported crashes when attempting to open the OculusVRDarts game we offer in our [Link Removed] Instead of allowing the engine to crash, we should handle this issue gracefully and ...

When setting in PreviewGameLaunguage, the package application always adds "culture" to the argument

UE - AI Workflows - UI Systems - Localization - Nov 12, 2020

Whenever packaging project from Launcher with a PreviewGameLanguage set, the culture="preview language" is added to the UE4CommandLine.txt file. Can avoid this issue by setting "None" in PreviewGam ...

Shadows can appear interrupted

UE - Graphics Features - May 28, 2021

Screenshots of the issue are attached. Shadows can appear interrupted and cut off in UE5 Early Access This issue is occurring in //UE5/Release-5.0-EarlyAccess Binary CL 16433597 This issue is NOT o ...