Unreal Engine Issues
Unreal Engine Issues
Streaming level is not visible when WorldPartitionRuntimeHashSet level is preloading and transitioning with package game.
UE - World Creation - Worldbuilding Tools - World Partition - Aug 5, 2024In levels where "WorldPartitionRuntimeHashSet" is specified as the runtime hash class, the world partition may not be correctly visible only in the package. This issue is reproduced only in packaged ...
Pasting custom data floats from a text editor into a instanced static mesh component crashes the editor
UE - Gameplay - Components - Aug 5, 2024When an instanced static mesh component with a material using a PerInstanceCustomData node has its data floats pasted in, the editor crashes with an "Array index out of bounds" error. The licensee w ...
Curve Table Editor's "Add Key" functionality does not work and appears to not be implemented..
UE - Editor - Workflow Systems - Aug 5, 2024Creating a new Curve Table asset, and then trying to use the right-click menu "Add Key" option does not do anything. FRealCurveModel still has the function, but it is left intentionally empty despit ...
r.VolumetricRenderTarget.PreferAsyncCompute producing different visuals
UE - Graphics Features - Aug 2, 2024When the cvar "r.VolumetricRenderTarget.PreferAsyncCompute" is enabled, it will cause Volumetric Clouds to ignore the influence of Volumetric Fog. In high-fog environments, this can cause the clouds ...
Issue with Landscape Layer Blending Node compile in UE 5.4.2
UE - Graphics Tools - Terrain - Aug 2, 2024When the SetMaterialAttributes Material Expression is used without an input to MaterialAttributes, it will cause Landscape Layer Blend expressions to fail to compile if it is the only layer on a par ...
Level Sequence Actor- bTickWhenPaused is unsettable from the details view
UE - Anim - Sequencer - Aug 1, 2024See UDN here: https://udn.unrealengine.com/0D5QP00000TtFaV0AV?fromCase=1 The issue is that in FMovieSceneSequencePlaybackSettings, the TickInterval struct is marked with an EditCondition to only be ...
UE 5.4 - Specular/reflection disappears above 4096 resolution render
UE - Rendering Architecture - Aug 1, 2024After a viewport is more than 4096 pixels wide, Lumen's specular reflections buffer cuts its width off at 4096 pixels. It appears that the affected buffer is "Lumen.Reflections.ResolvedSpecularIndi ...
Pressing the "Show Inactive" button in the material instance editor did not display groups that did not contain the active parameter
UE - Rendering Architecture - Materials - Aug 1, 2024When pressing the "Show Inactive" button in the material instance editor, all material parameters are supposed to be displayed in the EditorUI. This is not the case, only some of the parameters are ...
Logic error in TRange::Difference causes crash when you Trim and Preserve Left/Right and unbounded Attach section in the sequencer
UE - Anim - Sequencer - Aug 1, 2024TRange::Difference function does not handle bounds correctly, causes crash in the sequencer when "Trim And Preserve Left/Right" is used in the user's example project. User provided a potential fix: ...
Physics Linear Velocity functions from UPrimitiveComponent always return (0,0,0) velocity
UE - Simulation - Physics - Jul 30, 2024In Unreal Engine version 5.4, all Physics Linear Velocity functions inside PrimitiveComponent class are returning always a velocity of (0,0,0), even if the Body Instances are moving. This was workin ...