Unreal Engine Issues
Unreal Engine Issues
Sky Atmosphere Material Nodes not Correctly Represented in the Surface Cache for Nanite Enabled Static Meshes
UE - Graphics Features - Apr 1, 2025When nanite is enabled on a static mesh, lighting contributions from Sky Atmosphere material nodes are not incident on the static mesh and no longer present in the overall lighting of the scene. Th ...
Masked material using virtual textures covering a decal will result in black pixels
UE - Graphics Features - Nanite - Mar 31, 2025Depth Passes for Masked Materials using Virtual Textures does not work correctly when it is in front of a Nanite Mesh and a Decal, resulting in black artifacts. Also tested on //UE5/Main, CL: 41024 ...
[USD] Reimport change reference to transient
UE - Editor - Content Pipeline - Import and Export - Mar 31, 2025https://forums.unrealengine.com/t/usd-reimport-changes-referencers-to-transient/2421831 ...
Opcode shader compilation error when using a TextureSampleParameterCubeArray node with hardware ray tracing enabled
UE - Graphics Features - Ray Tracing - Mar 31, 2025Materials containing a cube array texture sampling node will not compile when hardware ray tracing is enabled. The shader compilation error indicates that an invalid op code was used: "Opcode Sample ...
Excessive RVT page updates with Nanite and ClearCoat or Cloth shading model applied
UE - Rendering Architecture - Mar 31, 2025There is an excessive number of page updates when a Nanite landscape has a runtime virtual texture material applied to it with a shading model set to ClearCoat or Cloth (instead of Default Lit). The ...
UAnimNotify::Notify not called during USkeletalMeshComponent interaction with UPhysicsControlComponent when PhysicsBlendWeight is zero
UE - Anim - Synthesis - Physics Control - Mar 30, 2025UAnimNotify::Notify not called during USkeletalMeshComponent interaction with UPhysicsControlComponent when PhysicsBlendWeight is zero. The licensee has provided his analysis of the code: If USkelet ...
ChaosCacheManager is not recording the Observed GeometryCollections NotifyBreak states between level loading and will default to false if changed from Record to Play
UE - Simulation - Physics - Mar 28, 2025ChaosCacheManager (CCM) is not recording the Observed GeometryCollections (GC) NotifyBreak states between level loading and will default to false if changed from Record to Play. AChaosCacheManager ...
ChaosCacheManager is not reproducing Collision Events the second time you Record and Play
UE - Simulation - Physics - Mar 28, 2025ChaosCacheManager (CCM) is not reproducing Collision events the second time (and onwards) we record a Geometry Collection (GC) breaking session. Particles set to track Collision Events correctly fol ...
ChaosCacheManager is not reproducing Trailing Events
UE - Simulation - Physics - Mar 28, 2025ChaosCacheManager (CCM) is not reproducing Trailing Events. Particles set to track Trailing Events correctly follow the position of the trailing event when the Geometry Collection (GC) is physically ...
Sequence with Override Instance Data enabled and a SubShot will accumulate the TransformOrigin Location wrongly and overshoot the expected end position
UE - Anim - Sequencer - Mar 28, 2025A Sequence with Override Instance Data enabled and a SubShot will accumulate the TransformOrigin Location wrongly and overshoot the expected end position. The licensee has encountered a particular s ...