Unreal Engine Issues

Float Curve evaluation may yield completely wrong results due to floating-point precision issue

Note: This is possibly related to [Link Removed]. For some inputs, function UE::Curves::WeightedEvalForTwoKeys() inside file "CurveEvaluation.cpp" can incorrectly return the value of the first key, ...

Geometry in sublevel created with "Load Level Instance" ignores level transform

Geometry in sublevel created with "Load Level Instance" ignores level transform. Other objects, such as Static meshes are affected by the transform. This issue is not a regression. Versions tested: ...

Blurry RVTs after camera jump

When using Runtime Virtual Textures (RVT) on landscape in UE 5.5+, nearby tiles may remain blurry (low-resolution mips) after launching PIE or making large camera jumps (e.g. via bookmarks or viewpo ...

Broken hair material with light function

Hair Materials do not react to Light Functions in the same way as other Materials. There is a visual difference between a Directional Light at 1 lux with no Light Function and a Directional Light at ...

Behavior of Speed Up/Down parameter of Auto Exposure are different.

Brend/Swtch multi PostProcessVolume to handle Auto Exposure with same Speed Up/Down parameter but behavior of Speed Up/Down parameter of Auto Exposure are different. Scene with. Unbounded PostProce ...

Occasional 1-frame UMG render data corruption on Metal

Localization warnings when opening a new project in 4.8.1

There are a couple of warnings that show up in the output log that are dealing with localization when opening up a new project. ...

UE 4.25.1 Offline Installer Display Error

[Image Removed] [Image Removed] ...

Ray traced ambient occlusion is affected by exposure when export from sequencer

Camera viewport hotkeys shouldn't affect Sequencer timeline when the viewport is focused