Unreal Engine Issues
Unreal Engine Issues
Cannot assign default values for UserWidget variable in blueprints
UE - Gameplay - Blueprint Editor - Feb 21, 2017Cannot assign default values for UserWidget variable. This limits their usability in blueprint classes, and really prevents them from being useful in UserStructs, particularly if that user struct is ...
Compilation error in Mac editor builds when adding UWorld::IsStreamingLevelBeingConsidered function
UE - World Creation - Worldbuilding Tools - Jun 30, 2023This code passes the build when compiled using the windows editor (Visual Studio), but fails when compiled using the mac editor (XCode). Adding ENGINE_API to struct FStreamingLevelsToConsider and ex ...
ForEachLoop does not save structure changes in the loop body
UE - Gameplay - Blueprint - Feb 2, 2015If a ForEachLoop node is used to cycle through an Array of Structures, using the Array Element output of the Loop node to set the members of the structure does not save the changed values. Workarou ...
Compilation error when using Particle SubUV in Niagara Mesh Particles with Raytracing enabled.
UE - Niagara - Oct 12, 2021The licensee has shared the following workaround for modifying NiagaraMeshVertexFactory.ush. struct FVertexFactoryInterpolantsVSToPS { TANGENTTOWORLD_INTERPOLATOR_BLOCK #if USE_PARTICLE_SUBU ...
Details Panel - USTRUCTS do not save their expansions properly
UE - Editor - Workflow Systems - Oct 6, 2023Currently USTRUCTS do not support saving expansions properly. While we won't implement a separate pathway for USTRUCTS to save their expansions, a general solution to save expansions for class or st ...
Chaos Vehicle wheel output data does not include the wheel forces
UE - Simulation - Physics - Oct 5, 2023This is more of a feature request than a bug. From a UDN customer. The output from the simulation to the game thread does not include the force that has been applied at each wheel. It would be pref ...
Multi-Line Text metadata not available if Text variable is created in a Blueprint
UE - Gameplay - Blueprint - Feb 20, 2017The Multi-line Text metadata specifier is not able to be set in a Blueprint. This means that text variables that are created directly inside of a blueprint cannot have this specifier set and cannot ...
Crash when editing FRuntimeFloatCurve's curve from sequencer's edit key window
UE - Anim - Sequencer - Mar 31, 2023Crash when editing a FRuntimeFloatCurve curve exposed through EventTrack or a self-made Struct from the sequencer key edit window. FRuntimeFloatCurve does not support Expose to Cinematic, so this m ...
Blueprint nativization fails using a map type argument as Expose on Spawn
UE - Gameplay - Blueprint - Oct 2, 2020Here's a sample blueprint [Image Removed] The lack of implementation FCustomThunkTemplates::SetMapPropertyByName causes this error.#include "Kismet/BlueprintMapLibrary.h"// The fix needs this head ...
RepLayout can hold onto hard references to owning objects, preventing them from being destroyed.
UE - Networking - Feb 28, 2019RepLayouts are associated with an Owning Object, which may be a Class, Function, or Struct. RepLayouts will only be cleaned up when the Owning Object is no longer valid. RepLayouts hold references t ...