Unreal Engine Issues
Unreal Engine Issues
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 ...
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. ...
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 ...
Landscape Distance Fields artifacts when using DX12
UE - Graphics Features - Apr 13, 2021This problem was reported in this UDN:https://udn.unrealengine.com/s/question/0D52L00005PbEYNSA3/landscape-distance-fields-artifacts?fromCase=1 ...
Crash when copying and making a button widget the root of a second widget blueprint
UE - Editor - UI Systems - Apr 13, 2021Pasting a button element from one Widget Blueprint into a second Widget Blueprint that has had its root Canvas Panel deleted results in a crash. The crash only occurs when the Canvas Panel is delete ...
Is Playing can return false on Sequence's second playthrough
UE - Anim - Sequencer - Apr 12, 2021Playing a sequence more than once will have an incorrect player status on the first frame. ...
Collections in content browser can't display native classes on 4.26
UE - Editor - Content Pipeline - Content Browser - Apr 12, 2021The filter in UContentBrowserClassDataSource::CompileFilter does not work because the enumerated class objects are FName without path, while the filter item is name with path. [Image Removed] ...
Editor crashes when using decal material on Instanced Static Mesh with Raytracing
UE - Graphics Features - Lumen - Apr 8, 2021This issue can occur when setting the Decal Material to Instanced Static Mesh in a Raytracing enabled project. (If there is a cache, it will not crash.) The cause is that DefaultDeferredDecalMateria ...
SweepComponent fails against non-root bodies of skeletal mesh component in PhysX
UE - Simulation - Physics - Apr 6, 2021UDN - https://udn.unrealengine.com/s/question/0D52L00005H9X5XSAV/sweepcomponent-never-returns-a-valid-hit-against-skeletal-meshes-when-using-physx?fromCase=1 ...