Content Browser 1 Inconsistent Behavior with Tabs

UE - Editor - Workflow Systems - May 22, 2023

"Content Browser 1" auto-hides if opened with the Level Editor, and has inconsistent docking behavior under the conditions caused by the repro steps above. The root of the problem seems to be that ...

Memory leak when Lumen is disabled but r.MeshCardRepresentation=1

UE - Graphics Features - Lumen - Jul 29, 2024

When Lumen is disabled, but the cvar "r.MeshCardRepresentation" is set to 1, Lumen will continuously enqueue object removal from the Lumen Scene, without ever emptying the array of primitives to rem ...

'Platform Stats' incorrectly display the number of Texture Calls for a material

UE - Rendering Architecture - Materials - Jul 29, 2024

When the DBuffer is disabled in the project settings, the Material Editor Stat page will still display the estimated texture lookups for the DBuffer. It appears that the code that adds these estimat ...

Nanite and mobile landscape don't have support for dynamic materials

UE - Graphics Tools - Terrain - Landscape - Oct 26, 2023

On a landscape actor with Nanite landscape enabled, set the bUseDynamicMaterialInstance property on a landscape proxy and setup a BP to call  SetLandscapeMaterialTextureParameterValue / SetLandscape ...

[MetaSounds][Wave Player] - 5.1 Wave Player channel output maps differently for Vorbis than other codecs

UE - Audio - MetaSounds - Aug 16, 2023

The channel output for 5.1 Waveplayer on MetaSounds is different when Platform Default (Vorbis) codec is chosen on Windows Platform Default - L, C, R, LS, RS, LFEBink, PCM, ADPCM - L, R, C, LFE, LS ...

iOS ReplayKit isn't working in UE5.1+

UE - Platform - Apple - Apr 21, 2023

In 4.27 & 5.0 when you press the in-app screen recorder button it would pop-up a msg about the user giving permission to allow the screen recording and then would start the recorder and save the mov ...

Merging Splines causes Engine to Crash in 5.1

UE - World Creation - Worldbuilding Tools - Merge Actor - Dec 15, 2022

Attempting to merge two spline actors causes the Engine to crash. This issue occurs with the Steps to Reproduce regardless if there are more branches added to the tree branch spline/enabled, and reg ...

BP hierarchy change triggers incorrect map actor load warning: AttachTo: '{0}' is not static {1}, cannot attach '{2}' which is static to it.

UE - Gameplay - Blueprint - Apr 11, 2024

When a blueprint's component hierarchy is changed by changing a child component's mobility value to Static while deleting its parent component which has Movable mobility, levels saved with an outdat ...

Investigate adding support for more flexible condition properties in the Material Editor.

UE - Rendering Architecture - Materials - Feb 23, 2023

The user has added a property to material expressions input node that has a complex expression in its "EditCondition" which isn't supported and results in a crash. Investigate adding support to thi ...

User Defined Enums don't support the UseEnumValuesAsMaskValuesInEditor meta specifier

UE - Framework - Blueprint - Sep 13, 2023

The Make Bitmask node uses the flag index rather than the flag mask value unless the enum has the UseEnumValuesAsMaskValuesInEditor meta specifier. UserDefinedEnums in the editor don't support this ...