Unreal Engine Issues
Unreal Engine Issues
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Niagara Editor Viewport will crash when rendering opaque materials with Mobile Multi-View and Mobile Vulkan Preview Enabled
UE - NiagaraThe Niagara viewport will crash when rendering opaque sprites if Mobile Multi View and the mobile preview are enabled. Additive materials do ...
Dark square appears in hair in direction of spotlight when shadows disabled
UE - Graphics FeaturesA dark square appears in the direction of a spotlight on hair when the spotlight has no shadow. [Image Removed] In UE 5.4 the dark square is...
Iris - Fast Array ItemMap is empty in PostReplicatedAdd
UE - Networking - IrisWith Iris enabled, the ItemMap is populated correctly only on the next frame, but it is empty during the callback. This differs from the beha...
Some Niagara FX does not show up in MovieSceneCapture when AgeUpdateMode is DesiredAgeNoSeek
UE - NiagaraCL23957356 changes how to calculate FrameOffset in FNiagaraSystemUpdateDesiredAgeExecutionToken::Execute(). After this change, DesiredAge + Fr...
Modifying FSuggestProjectileVelocityParameters::ResponseParam.CollisionResponse modifies FCollisionResponseParams::DefaultResponseParam
UE - GameplayFSuggestProjectileVelocityParameters was introduced in 5.4 and has a FCollisionResponseParams member that's initialized as a mutable reference...
Blueprint compilation resets settings on level-placed actors
UE - Gameplay - BlueprintTriggering an actor component recompilation resets all the variables to the default state on spawned actors in the level. Users can unintenti...
VSMs not rendering soft shadows on left eye in stereo rendering when more than one light is casting shadows
UE - Graphics FeaturesLeft eye shadow dithering stops working at a certain distance away from the light. To recreate this behavior with any project, follow those s...
Assert in MoviewPipelinePIEExecutor when cancelling movie scenes during rendering
UE - Anim - Sequencer - MRQWhen rendering a single Level Sequence with MRQ, removing the Level Sequence that is actively rendering will create an array out of bounds exc...
Modifying FSuggestProjectileVelocityParameters::ResponseParam.CollisionResponse modifies FCollisionResponseParams::DefaultResponseParam
UE - GameplayFSuggestProjectileVelocityParameters was introduced in 5.4 and has a FCollisionResponseParams member that's initialized as a mutable reference...
GameplayAbilitiesSystem: GameplayCues OnRemoved never firing
UE - Gameplay - Gameplay Ability SystemThis behaviour was introduced in the following changelists in 5.3: CLs 25371706 and 25407985 https://github.com/EpicGames/UnrealEngine/commit...