UIScaleCurve float-point value in BaseEngine.ini lacks precision

UE - Editor - UI Systems - Slate - Jun 4, 2020

The screenshots below display 1920x1080pixel widget button. First one with Default DPIScaleCurve shows extra borders on the right and bottom. Next one with more precision shows no extra boundary. [ ...

The HISM will have double drawcalls when player opens r.Mobile.AllowDitheredLODTransition

UE - World Creation - Worldbuilding Tools - Foliage - Nov 2, 2020

Please check the Function GetDynamicMeshElements in HierarchicalInstancedStaticMesh.cpp. The  Function Traverse in GetDynamicMeshElements will always return two Lod levels, even the transition is f ...

When TSR is enabled, the maximum brightness is clamped to about 16000.

UE - Graphics Features - Jun 7, 2022

You can also check it by enabling real-time rendering in the NewMap.umap of the attached project, and then clicking on "High Resolution Screenshots". (You may need to disable and enable post-process ...

[MetaSounds] - Outputs of nodes being used in a composed graph do not have animations

UE - Audio - MetaSounds - Oct 23, 2022

Outputs on composed nodes are not animating.  [Image Removed] ...

Button response wrong on lastest MacbookPro

UE - Platform - Apple - Jul 24, 2022

Crash when deleting a folder with children in the Outliner in a large map

UE - Editor - Workflow Systems - Oct 11, 2023

We've encountered a crash when trying to delete a folder after renaming one of its' children. I have attached a video and the callstack to this ticket. This might be related to [Link Removed] as the ...

Build All Levels fails with duplicate level instances

UE - World Creation - Worldbuilding Tools - Level Instances - Jan 24, 2024

[Device Swap] - Assertion failed: AudioStreamInfo.StreamState == EAudioOutputStreamState::Closed [File:D:\build\++UE5\Sync\Engine\Source\Runtime\AudioMixerCore\Private\AudioMixer.cpp]

UE - Audio - Jul 25, 2023

Issue has been seen a couple times internally and closed as No Longer occurring. Looking at Crash Reporter, issue has been seen live a number of times. Looking at user logs, occurs after:LogAudioMi ...

Memory stomp in UTexture2DArray::SetPlatformData

UE - Texture - May 30, 2024

A crash from bad memory access can happen when clearing the textures in a Texture2DArray asset. This appears to be because the order of operations when deleting the platform data is: ``` if (Privat ...

Enabling ZenLoader causes editor crash when undoing Level Instance deletion

UE - CoreTech - Sep 5, 2024

Crash reported through UDN. With ZenLoader enabled, deleting a level instance and triggering Undo causes a crash in  ULandscapeComponent::PostEditUndo() The user has provided an example project th ...