Ensure fires during nativized build while packaging for any BP class based on UAnimNotify

OLD - Anim - Oct 25, 2018

Cooking will fail while attempting to convert a non-data-only Blueprint class based on the native UAnimNotify class when Blueprint nativization is enabled. Workaround in lieu of a fix would be to e ...

Unable to create derived classes of UPostProcessComponent

UE - Graphics Features - Jul 5, 2019

Using the Super functions for OnRegister, OnUnregister, Serialize when defining their functionality in a derived class of UPostProcessComponent causes a linker error. Tested in 4.21.2 (CL - 4753647 ...

Cannot get CookedFFTData from an Audio Component in a packaged build

UE - Audio - Jul 11, 2019

When trying to get CookedFFTData from an audio component in a packaged build it fails despite working in the Editor. This also occurs when you package the project from File->Package Project->Windows ...

Certain combinations of 'bRenderStatic' and 'bNoSkeletonUpdate' on SkeletalMeshComponent produce undesirable behavior.

UE - Graphics Features - Aug 7, 2019

Issues observed:  - When bRenderStatic is on and bNoSkeletonUpdate is off, CachedMeshDrawCommands takes a significant chunk of time, because the scene primitive transform is being updated every fra ...

"Enable Stencil Test" Mobile crash

UE - Graphics Features - Sep 10, 2019

A material with 'enable stencil test' will crash on mobile. Enable Stencil Test is a new option in materials as of 4.23 Confirmed with OpenGL 3.1 + 2 and Vulkan on Pixel XL Also Crashes on iOS ...

Landscape Tessellation Issues

UE - LD & Modeling - Terrain - Landscape - Sep 23, 2019

We are having a display issue with tiled landscapes displaying well below full tessellation in editor, but displaying fine in game. We can "fix" this issu by unchecking "Use Default Falloff" in deta ...

Texture Group MaxLODSize doesn't recognize changes to WorldNormalMap in DefaultDeviceProfiles.ini

UE - Foundation - Core - Nov 11, 2019

When trying to change the MaxLODSize using DefaultDeviceProfiles.ini, some of the groups scale but others don't. This was reported and tested in 4.23.1 (CL-9631420). This was reproduced in 4.22.3 ...

SetCollisionEnabled shouldn't check owner

UE - Simulation - Physics - Nov 8, 2019

Attempting to set the collision of a component to NoCollision while the actor's collision is disabled will prevent the component's collision from changing. This is because of the early exit in UPrim ...

Apex Destruction - Destructible Mesh disappears after Fracture

UE - Simulation - Physics - Destruction - Jan 3, 2020

Fracturing a mesh with Apex Destruction in 4.24.1 (CL-10757647) causes the mesh to disappear after clicking Fracture. This behavior was not present in 4.23.1 (CL-9631420). Unable to confirm this in ...

Inverted normals with Datasmith .STP import

UE - Editor - Content Pipeline - Datasmith - Importer - Jan 15, 2020

When importing this .stp file through Datasmith, the normals are inverted upon import. Attached are screenshots of the normals in AutoDesk Alias and McNeel Rhino. This was reported and tested in 4 ...