Unreal Engine Issues

Montage sections are not respected when auto blend out is off

Sampling UV1 on a Nanite mesh with one UV channel returns a constant value

This is general for any UV channel past what the static mesh has, rather than specifically for UV channel 1. ...

Actors with Child Actor Components get out of sync when undoing component transform in child Blueprint

Undoing a child actor's component transform in its Blueprint editor isn't reflected in child actor instances in the level editor. Subsequent transforms are also not propagated after the undo breaks ...

Usd wrapper uses TCHAR_TO_ANSI conversions causing path issues with basic extended ASCII character set

It seems that a simple change from TCHAR_TO_ANSI to TCHAR_TO_UTF8 in UE::FUsdStage OpenStageImpl() fixes the issue. ...

[WinDualShock] DualSense controller haptics with sound does not work in cooked builds

The user has a proposed fix which they said works: Heya, so just to be clear your solution was to change the WinDualShock.uplugin file where the "WinDualShock" module is defined, and make it "Runtim ...

Frustum culling provides inconsistent results causing particles to render even when the bounds are out of view.

When the camera is just outside of the box bounds and it is angled directly away from it , it will start rendering the particles again (as determined by stat GPU differences) despite being out of vi ...

Replicating a non-root component with simulate physics enabled causes the component to be in the wrong place on spawn, on clients.

When a BP spawns another, if the spawned Actor has a non-root child component that is simulating physics, on clients, immediately after spawn, the child component will have the world position double ...

[5.4+] World Partition Landscape Spline Meshes Builder - Source landscape splines are not properly removed/hidden

LandscapeSplineActors and LandscapeSplineMeshesActors are not behaving as expected in 5.4 or 5.5. Testing in 5.4 the issue mostly seems to stem from issues with the Target Landscape -> Landscape Ac ...

Leaving engine open for an extremely long time builds up memory usage, eventually crashing upon any activity

Edit MattK: Not reproducible yet If the editor is open and used for a long period of time without being closed, it stores memory use. After building up a significant amount of resources building us ...

BuildEditorAndTools build graph script no longer produces working editor executable

It looks like the BuildEditorAndTools script is no longer copying the (pre-existing in perforce) files from //UE4/Dev-Core/Engine/Binaries/Win64/ to the output LocalBuilds directory, which means the ...