Unreal Engine Issues
Unreal Engine Issues
Adding HISMC instances resets wind for all existing instances
UE - Graphics Features - Jul 6, 2018When 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
UE - World Creation - Worldbuilding Tools - Foliage - Jul 10, 2018Foliage: 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
UE - Graphics Features - May 2, 2019Decals are not being captured by environment reflections. Last working in 4.20.3 ...
Screen space reflections are flickering when using no Anti Aliasing
UE - Graphics Features - May 20, 2020This 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. ...
USplineComponent::GetSplinePointAt() returns FSplinePoint with incorrect Type
UE - Gameplay - Components - Feb 15, 2024USplineComponent::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
UE - Graphics Tools - Terrain - Landscape - Sep 26, 2024TOptional value changes in parent BP don't propagate to loaded child BPs
UE - Framework - Blueprint Editor - Oct 27, 2025Context 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
UE - Gameplay - Blueprint - Jan 28, 2016Output pins labeled "self" will not appear on interface functions called in blueprints. ...
Warning After restart between "GetClass" and "Contains item"
UE - Gameplay - Blueprint - Aug 14, 2015User gets a warning from a set of nodes after they restart their project. The setup is between a "GetClass" node and a "Contains Item" node. The Setup appears to work fine and there is no initial wa ...
Color Information Clamped to a Max of 1 in Cascade Color Modules
UE - Graphics Features - Dec 3, 2014You cannot enter a value higher than one in any color module. WORKAROUND - You can graph it and select the point you want to change and then set value to any number, but it will be clamped back to ...