Enhanced Input duplicately fires input event when used in Widgets.

UE - Gameplay - Input - Jun 9, 2023

When creating a UserWidget and creating a process to receive input events with Enhanced Input, input events may be generated multiple times in duplicate. To reproduce this problem, create a Widget a ...

Crash in PlayReverse

UE - Anim - Sequencer - Jul 26, 2024

Oodle CompressionLevelNameMap is missing an entry for Optimal5, leading to a crash in the texture editor

RAD - Oodle - Aug 2, 2024

Due to a missing string in CompressionLevelNameMap in OodleDataCompression.cpp, it is possible for LevelName to be left uninitialised after parsing the compression effort, which causes a crash when ...

Motion Matching: Check failure when adding sequence into DB that references a niagara emitter

UE - Anim - Gameplay - Aug 7, 2024

The serialization code for the motion matching database has a check that will fail if a property has the IgnoreForMemberInitializationTestName meta tag.  Niagara emitters contain a property that has ...

.natvis for external modules is not supported

UE - Foundation - Cpp Tools - UnrealBuildTool - Aug 22, 2023

Currently UBT supports linking in .natvis files when modules are compiled, this should be extended to pull in .natvis files from External modules that are linked into a module. Instead of scanning ...

Cooker: NeverCookPackageList should store packages as LongPackageNames instead of filenames, to save memory by avoiding creation of FName for each external actor package

UE - Foundation - Core - Cooker - Jul 30, 2024

GetNeverCookPackageFileNames among other things adds every external actor package to NeverCookPackageList, even if they are not referenced by the rest of the cook. Since it stores the packages in th ...

UI Flickers in Packaged Movie Render Queue builds

UE - Anim - Sequencer - MRQ - Jul 26, 2024

Landscape Layer Painting issues when painting near the edge of delete Landscape Proxies.

UE - LD & Modeling - Terrain - Jul 19, 2024

It appears that the landscape painting tool is not correctly taking into account deleted landscape sections, resulting in artifacts inside of the weight textures. ...

Path Tracing denoiser is not stable in animation

UE - Graphics Features - Nov 30, 2021

When rendering an animation with the path tracer through MovieRenderQueue, at low sampling rates the denoiser produces splotchy results that flicker from frame to frame. The current denoiser (Ope ...

r.MaxAnisotropy does not work in editor

UE - Graphics Features - May 21, 2021

Setting r.MaxAnisotropy by console in editor has no effect on texture sampler's MaxAnisotropy. If the startup value of r.MaxAnisotropy is 8, then the MaxAnisotropy is always 8 no matter how  r.MaxA ...