Unreal Engine Issues
Unreal Engine Issues
Crash generating grass for landscape with XY offset map
UE - LD & Modeling - Terrain - Landscape - May 8, 2015Landscape grass map generation crashes if the landscape component in question uses an XY offset map. --------- Fatal error: [Link Removed] [Line: 646] Rendering thread exception: Fatal error: [Lin ...
Expose light depth and position to Light Functions
UE - Graphics Features - Oct 14, 2019Users have requested that light depth and light position are made available to Light Function Materials.Light Depth We seem to be calculating the per-pixel distance from the light to the surface in ...
Duplicated Parameters in a MPC cannot be used always return source results
UE - Rendering - Architecture - Materials - Jun 15, 2015When you duplicate a Parameter in a Material Parameter Collection instead of adding a new Parameter, the duplicated parameter always returns the same results as the source no matter the value entere ...
Component default data can be lost for a non-nativized Blueprint class that inherits the component from a nativized parent Blueprint class.
UE - Gameplay - Blueprint - Sep 5, 2018This is a regression that was introduced by the fix for [Link Removed]. The fix makes an invalid assumption that instances of components whose archetypes are inherited by a non-nativized child Blue ...
Check hit in FNetworkObjectList::MarkActiveInternal for dormant actor after seamless travel
UE - Networking - Nov 15, 2023When seamlessly traveling, FNetworkObjectList will have its data cleared. However, because FNetworkObjectList::Reset is called before FNetworkObjectList::ResetDormancyState, AllNetworkObjects will b ...
Removing a parameter from a blueprint function in a library can cause actor classes calling it to lose their parent or instance data
UE - Gameplay - Blueprint - Oct 4, 2018Compile errors caused by an actor calling a function with something hooked up to a removed parameter can cause that actor to lose it's place in the hierarchy. Typically, the actor will be fixed once ...
This user project gets a continual ensure condition failed: CurrentDepthTexture during PIE and packaged games
UE - Graphics Features - Jun 25, 2015Continual ensures while playing this user's project: LogOutputDevice: === Handled error: === Ensure condition failed: CurrentDepthTexture [Link Removed] [Line: 650] Stack: UE4Editor-Core.dll!FWind ...
Cannot Increment a Blackboard Key Value
UE - Gameplay - Blueprint - Feb 4, 2016Getting a blackboard value as int and then attempting to increment it does not actually increment the value. Upon attempting to increment a value that started at 0, the editor continued to print out ...
Alpha blending is done twice when using RenderOpacity of RetainerBox's parent slot
UE - Editor - UI Systems - UMG - Feb 10, 2023Licensee reported that alpha blending is done twice in the code below, and the fix below seems to fix it. .\Engine\Source\Runtime\UMG\Private\Slate\SRetainerWidget.cpp From:const FLinearColor Compu ...
UAbilitySystemComponent's CurrentMontageStop() function does not use OverrideBlendOutTime Float Parameter.
UE - Gameplay - Jul 2, 2019In the attached example, the third person mannequin character's BeginPlay() runs an Ability_Task which starts an animation montage. In the task it is specified that the blend out time (BlendOutTime ...