Unreal Engine Issues
Unreal Engine Issues
GLTF Datasmith Files Import Incorrectly if Mesh Names Contain a "."
UE - Editor - Content Pipeline - Datasmith - Importer - Jun 3, 2019Importing a GTFL through the GLTF Datasmith import references incorrect instance meshes when their names contain a period. Which is very common when exporting from Blender which automatically adds t ...
Gameplay Abilities: FAttributeSetInitterDiscreteLevels::PreloadAttributeSetData does not allow FGameplayAttribute.
UE - Gameplay - Jun 19, 2019Moving from "float" to "FGameplayAttribute" is causing a test to fail. ...
Editor Crashes when Isolating a Material Element on Skeletal Meshes with Ray Tracing Enabled
UE - Graphics Features - Lumen - Jul 3, 2019With ray tracing turned on, clicking on the isolate material option next to a material slot on a skeletal mesh with more than one material slot, causes the editor to crash. Found in 4.22 CL# 7053647 ...
Niagara Memory Leak in vertex buffer when increasing particle spawn rate on CPU sims
UE - Niagara - Jul 16, 2019Increasing the spawn rate of a CPU particle sim will cause a memory leak in the vertex buffer. ...
Planar Reflections Not Behaving As Expected in Splitscreen
UE - Graphics Features - Dec 19, 2018This occurs in //UE4/Main @ CL 4670176 Not a Regression. This is similar to https://jira.it.epicgames.net/browse/UE-59149 but when adding more player characters it seems to change the planar reflec ...
FAnimNode_RigidBody::bForceDisableCollisionBetweenConstraintBodies modifies asset collision table
UE - Simulation - Physics - Jul 24, 2019The 'Force Disable Collision Between Constraint Bodies' rigid body node option modifies the collision table of the physics asset its used with. It is expected that this option works as an override a ...
Interpolators of Particle Dynamic Parameters Need "nointerpolation".
UE - Niagara - Aug 1, 2019Regardless Niagara or Cascade, dynamic parameters for particles are passed to pixel shaders from vertex shaders via InterpolantsVSToPS. It can cause a precision error on some materials, for example ...
Deferred Decals Fade In With No Fade Duration Set
UE - Graphics Features - Aug 9, 2019Decals fading in with Fade Duration set to zero. Found in 4.21 CL# 4753647, 4.22 CL# 7053642, 4.23 Preview 5 CL# 7838574 ...
USkinnedMeshComponent::PredictedLODLevel can be set below MinLOD
UE - Anim - Rigging - Aug 12, 2019Within USkinnedMeshComponent::UpdateLODStatus_Internal, if the USkinnedMeshComponent does not yet have a MeshObject, MaxLODIndex will be left as 0 and as a result PredictedLODLevel will be set to 0 ...
Crash When Building HLODs
UE - World Creation - Worldbuilding Tools - HLOD - Aug 21, 2019Building HLODs causes a crash. This only seems to occur in some levels as shown in the attached project. Found in 4.22 CL# 7053642, 4.23 CL# 7948402, 4.24 CL# 8124506 ...