Unreal Engine Issues

Imported Custom Convex Collision Mesh has Topology Modified

Importing custom pre-triangulated UCX collision data, can modify the topology of the mesh producing an inaccurate collision shape. ...

Tessellated Materials Displayed as 0 in Shader Complexity ViewMode

Tessellated Materials Displayed as 0 in Shader Complexity ViewMode. Found in 4.22 CL# 7053642, 4.23 CL# 8386587, 4.24 CL# 8588088 ...

The Bind Event node created from a blueprint dispatcher is different from the one created from the context menu

Adding a Bind Event node in different ways can create nodes with identical names (Bind Event to <Dispatcher>), but under the hood they are actually different nodes. Easiest evidence is that they ha ...

Material Billboard Renders Incorrectly In Splitscreen

In splitscreen, Material node SphereMask causes Material Billboard to only be visible to first player's viewport. Found in 4.22 CL# 7053642, 4.23 CL# 8386587, 4.24 CL# 8557439 ...

UAnimSequenceBase::GetNumberOfFrames off by 1

Creating a montage from a default frame rate and rate scale sequence reports 1 less frame than the sequence. The difference is a result of UAnimSequence overriding UAnimSequenceBase::GetNumberOfFram ...

Import From Animation Root option on transform tracks creates a new absolute transform track

Importing root motion onto a transform creates a new absolute track, which can blend unexpectedly with existing transforms.  ...

Material rendering incorrectly when using DepthFade on iOS

This issue only occurs on iOS and does not reproduce on Windows or Android. I have seen that the SceneDepth value of the DepthFade node may not be compared correctly. ...

Vive - PIEVR 'Set World To Meters Scale'

UAnimInstance::GetInstanceTransitionTimeElapsed returning 0 in non-editor builds

In non-editor builds UAnimInstance::GetInstanceTransitionTimeElapsed always returns 0.0f. This is caused within FAnimNode_StateMachine::Update_AnyThread due to: #if WITH_EDITORONLY_DATA NewTra ...

Instanced static meshes fire an erroneous performance assert about loose parameters.

 "This ensure is intended to catch regressions where rendering programmers add a loose parameter to LocalVertexFactory, breaking dynamic instancing on regular static meshes.  InstancedStaticMeshes c ...