Unreal Engine Issues
Unreal Engine Issues
There is a moment of T pause when Post Roll Frames is enabled and snapping is enabled
UE - Anim - Sequencer - Apr 19, 2021When I turn off snap, the problem does not occur The problem does not occur in 4.24.3 and 4.25.4 Occurs in 4.26.2 and UE4main ...
Adding a new component to a parent class breaks child Blueprints
UE - Gameplay - Blueprint - Apr 16, 2021See UDN(308147): [Link Removed] ...
RemoveWindSource modifies game thread array while in a parallel for loop.
UE - Simulation - Physics - Apr 16, 2021FScene::RemoveWindSource is called from a parallel for loop, and concurrently deletes wind component pointers from the same game thread array causing crashes when the scene contains multiple wind so ...
Material cannot be set in MaterialInterface of NiagaraParameterCollection
UE - Niagara - Apr 16, 2021When MaterialInterface is added to UserParameter of NiagaraSystem, Material can be set in Properties. Also, in UE4main CL15988344, there is no MaterialInterface item in the NiagaraParameterCollecti ...
Nvidia Graphics Drivers cause editor menus to flicker and disappear after using the editor for an extended period of time
UE - Graphics Features - Apr 16, 2021This issue seems to be occurring on a variety of Nvidia cards. So far, I haven't seen any indication that it is affecting AMD graphics cards. The majority of the reports have indicating that the pro ...
Validation error in FSkeletalMeshSceneProxy::GetDynamicRayTracingInstances due to wrong LODSection.SectionElements count
UE - Graphics Features - Lumen - Apr 16, 2021The following condition is sometimes not met: LODSection.SectionElements.Num() == MeshObject->GetRayTracingGeometry()->Initializer.Segments.Num() ...
Crash when adding a Material Layer with a Static Component Mask Parameter node to a Material Instance
UE - Graphics Features - Apr 15, 2021When adding a Material Layer, that has a Static Component Mask Parameter node in it, to a Material Instance, the editor will crash. The ability to set Material Attribute layers in a Material Inst ...
Sphere Trace Distance Field GPU function hides necessary Collision DI input
UE - Niagara - Apr 14, 2021The collision DI input is a hidden input, but is necessary for compilation. The input node should likely be marked as required, not hidden. ...
Retainer box widget causes progress bars to render incorrectly
UE - Editor - UI Systems - Slate - Apr 14, 2021Retainer boxes are currently causing progress bars to render incorrectly. This looks to be related to [Link Removed] which is fallout from the changes to retainer widget transform calculation introd ...
Virtual Texture not available in the Material Domain settings of a Material
UE - Graphics Features - Apr 13, 2021Virtual Texture is not available as an option for the Material Domain. Even if Virtual Texture support is enabled in the project settings. Tested in //UE4/Release-4.25 @ CL 14469661 and this did ...