Unreal Engine Issues
Unreal Engine Issues
Niagara Editor Viewport will crash when rendering opaque materials with Mobile Multi-View and Mobile Vulkan Preview Enabled
UE - Niagara - Sep 18, 2024The Niagara viewport will crash when rendering opaque sprites if Mobile Multi View and the mobile preview are enabled. Additive materials do no crash, and if the viewport is not set to lit it does ...
Dark square appears in hair in direction of spotlight when shadows disabled
UE - Graphics Features - Sep 18, 2024A 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 visible when the spotlight has no shadow, and a light s ...
Iris - Fast Array ItemMap is empty in PostReplicatedAdd
UE - Networking - Iris - Sep 17, 2024With Iris enabled, the ItemMap is populated correctly only on the next frame, but it is empty during the callback. This differs from the behavior of the current system, where the ItemMap is populat ...
Some Niagara FX does not show up in MovieSceneCapture when AgeUpdateMode is DesiredAgeNoSeek
UE - Niagara - Sep 17, 2024CL23957356 changes how to calculate FrameOffset in FNiagaraSystemUpdateDesiredAgeExecutionToken::Execute(). After this change, DesiredAge + FrameOffset could be 0.0 for some a couple of initial fram ...
Modifying FSuggestProjectileVelocityParameters::ResponseParam.CollisionResponse modifies FCollisionResponseParams::DefaultResponseParam
UE - Gameplay - Sep 17, 2024FSuggestProjectileVelocityParameters was introduced in 5.4 and has a FCollisionResponseParams member that's initialized as a mutable reference to FCollisionResponseParams::DefaultResponseParam. str ...
Editor crashes when the "Find in Blueprints" dialog runs its indexing task after any SlowTask was canceled by the user
UE - Gameplay - Blueprint - Sep 17, 2024If any SlowTask is canceled by the Editor's user, and later on the "Find in Blueprints" dialog is opened and needs to perform its async indexing task, the Editor crashes on thread FAsyncSearchIndexT ...
InverseExposureLerp should return 1.0 when EYE_ADAPTION_DISABLED is 1
UE - Graphics Features - Sep 16, 2024Materials using EyeAdaptationInverse may render incorrectly when debug visualizations are active. This issue can be resolved by modifying the EyeAdaptionInverse function in EyeAdaptionCommon.us ...
Fail to copy files to IOS app with AdditionalBundleResources and UPL
UE - Editor - Content Pipeline - Asset Build - Sep 14, 2024When using AdditionalBundleResources in the Build.cs file to copy files, the files appear in the Resources directory of the generated Xcode project. However, these files are not found in the final i ...
Niagara Sim Cache result from 3D Gas is blocky in Windows packaged game
UE - Niagara - Sep 13, 2024Summary: Cached 3DGas Niagara system appears blocky in packaged game. Brought up by a licensee via UDN: https://udn.unrealengine.com/s/question/0D5QP00000a17A40AI/niagara-fluids-simcache-artefacts- ...
[Pose Driver Connect] Animation imports that need "Force X Front" are not supported.
MetaHuman - Sep 13, 2024User's who have imported and set their skeleton to Force X Front, when importing animations from pose driver do not have an option or autodetect setup and the animations are imported normally. This ...