Unreal Engine Issues
Unreal Engine Issues
Linked graphs that are linked via post process anim bp BeginPlay can be lost on reinitialization of anim instance
UE - Anim - Runtime - Anim Blueprints - Dec 16, 2024Certain codepaths in USkeletalMeshComponent::InitializeAnimScriptInstance can cause linked anim graphs that are running in Post Process anim bps to be unlinked. The problem only occurs when the lin ...
iPadOS AR App Crashes when ARKit's "Use Scene Depth for Occlusion" is Enabled
UE - Platform - XR - Dec 13, 2024Does not crash in 5.4 on same hardware so looks like a regression. Attached Unreal logs indicate source of critical error: 'FARKitCameraOverlayMobilePS' shader uniform expression set mismatched sh ...
Foliage unbuilt instances have incorrect LOD
UE - World Creation - Worldbuilding Tools - Foliage - Dec 13, 2024From licensee: Foliage instances are not drawn correctly/the wrong LOD is selected while painting in FoliageMode. This is more apparent when setting InstanceSettings>CullDistance>Max to a value != ...
Can't get accurate Anim Notify State elapsed duration while in a montage.
UE - Anim - Gameplay - Dec 13, 2024When GetCurrentAnimationNotifyStateTimeRatio is used inside of a montage it can return the wrong time ratio in certain cases. ...
Ejecting from player in multiplayer PIE results in the wrong world being displayed
UE - Networking - Dec 13, 2024In [Link Removed], it mentions that only the instance in the editor viewport supports switching to Simulate In Editor when running multiple instances in PIE. However, rather than showing that instan ...
Sequencer events with a payload of struct containing Object do not work
UE - Anim - Sequencer - Dec 12, 2024A structure containing Object as a parameter is misrecognized as a single Object and loses the parameter. This behavior was brought in by CL-27785664. ...
UV issues using Procedural meshes
UE - Graphics Tools - Modeling Tools - Dec 11, 2024From licensee: We build our procedural meshes using C++ and we checked our UVs used to fill the UV array before applying the CreateMeshSection method. The UVs seems to be correct however the result ...
The "Make Static Mesh" feature for skeletal meshes does not account for disabled mesh sections.
UE - Anim - Rigging - Skeletal Editor - Dec 11, 2024The licensee was not able to make static meshes with the correctly disabled sections from a skeletal mesh in the current implementation of the "Make Static Mesh" button in the editor. They have prov ...
Runtime Virtual Texture rendering can allocate more FRDGBuffers than expected
UE - Rendering Architecture - Dec 10, 2024When rendering runtime virtual texture pages without throttling (when r.VT.MaxUploadsPerFrame is high or during Movie RenderQueue captures) the number of FRDGBuffers allocated by the Render Graph Bu ...
Modifying the properties of a ChildActorComponent in a child blueprint can modify the parent actor ChildActorComponent properties.
UE - Framework - Blueprint - Dec 10, 2024When a property of a ChildActorComponent is modified in a child class, the parent ChildActorComponent class can also get modified. This happens when the Parent blueprint actor has a ChildActorCompo ...