Unreal Engine Issues
Unreal Engine Issues
Blueprint debugger: variable getter node displays wrong object's value
UE - Gameplay - Blueprint Runtime - Jul 28, 2023After triggering a breakpoint in blueprint, variable getter nodes can display the value of a different object than the node's target. For example: if an actor class has a value MyBool and the bluepr ...
Python does not always copy struct properties when there are differences
UE - Editor - Workflow Systems - Jul 28, 2023I noticed that some struct are not always copied in python. For example, FBox is not copied if !a_src.IsValid and !a_dst.IsValid even if Min and Max are different. Another example is FJsonObjectWrap ...
Logging out and then logging in as a new user results in slate creating multiple Slate User IDs
UE - Gameplay - Input - Jul 28, 2023I believe this is happening because when you change your logged in user, the Slate Application will automatically create a new second slate user with an ID of 2. This is bad because the Slate App is ...
Inaccurate motion vectors when using different position binding in renderer
UE - Niagara - Jul 27, 2023Even though the particles are not moving, and the velocity is zero, the output motion vectors are non-zero. This seems to only happen if using two sources of particle positions. ...
[CrashReport]Assertion failed: !bInstancedStereoEnabled || (bInstancedMultiViewportEnabled || bMobileMultiViewFallback) [File:./Runtime/RenderCore/Private/StereoRenderUtils.cpp]
UE - Platform - XR - Jul 27, 2023Generated from CrashReporter ...
[CrashReport]UnrealEditor-MegascansPlugin!AssetUtils::AddFoliageTypesToLevel(TArray<FString,TSizedDefaultAllocator<32> >) [MiscUtils.cpp:258]
Quixel - Jul 27, 2023Generated from CrashReporter ...
Getting Emitter.NumParticles on Niagara's GPU compute sim returns 0
UE - Niagara - Jul 27, 2023This problem looks like the following parameters are not defined correctly. The correct parameter is Engine_Emitter_NumParticles. Engine_Emitter_NumParticles and PREV_Engine_Emitter_NumParticles .\ ...
BP property initialization fast path does not handle non-instanced properties assigned to default subobjects correctly
UE - Gameplay - Blueprint - Jul 27, 2023Non-instanced object ref properties are incorrectly being skipped at property initialization time when Blueprint class instances are spawned with the fast property initialization path enabled. This ...
Per Instance Random node not working in material layer
UE - Rendering Architecture - Materials - Jul 27, 2023Licensees report that the definition of the USES_PER_INSTANCE_RANDOM macro only considers it in the context of the base material. As a result Per Instance Random used only in material layers does n ...
NiagaraComponent attached to the character won't stay active when travelling to a new level using seamless travel
UE - Niagara - Jul 27, 2023The pawn character is added to APlayerController::GetSeamlessTravelActorList, so it'll be persisted during server travel. The Niagara component is spawned during BeginPlay and activated manually. W ...