Unreal Engine Issues

Adding HISMC instances resets wind for all existing instances

When adding new HISM instances, actors using SpeedTree -> WorldPositionOffset material are reset. 4.19 Repro project provided by user. I was unable to get WPO wind working in 4.18, I did noticed th ...

Foliage: Speed tree wind is reset for every add/remove/update on instances

Foliage: Speed tree wind is reset for every add/remove/update on instances What is happening:When we invalidate the render state, proxy are recreated, causing the wind to be removed and add again, ...

Decals not captured in environment reflections

Decals are not being captured by environment reflections. Last working in 4.20.3 ...

Screen space reflections are flickering when using no Anti Aliasing

This is a regression from 4.24.3 (CL-11590370). SSR begins to flickers when AA is disabled when moving around the scene. This was reported and tested in 4.25 (CL-13144385) and reproduced in Main 4. ...

Validate whether the usage of FPIEFixupSerializer can be removed from UWorld::DuplicateWorldForPIE

Welding doesn't work until the first time the actor simulates

USplineComponent::GetSplinePointAt() returns FSplinePoint with incorrect Type

USplineComponent::GetSplinePointAt() returns an FSplinePoint with the ESplinePointType 'CurveCustomTangent' rather than the type from the setup.Expected: It should return the correct type. ...

Landscape height data gets cleared when working with partially loaded landscapes

TOptional value changes in parent BP don't propagate to loaded child BPs

Context TOptional<T> is a wrapping struct around a type, that lets the property have an set and unset state, in addition to the property's value when set. It is editor exposed: designers can open b ...

Output pins labeled "self" will not appear on interface functions called in blueprints

Output pins labeled "self" will not appear on interface functions called in blueprints. ...