Unreal Engine Issues
Unreal Engine Issues
Incorrect mesh deformation when Max World Position Offset Displacement used
UE - Graphics Features - Nanite - Feb 12, 2025When Vertex Animated Texture is used to animate a mesh with World Position Offset, often the Max World Position Offset Displacement Material setting must be increased or the Bounds Scale increased, ...
Mover ensure triggered when engine is running in the background
UE - Gameplay - Network Prediction - Feb 11, 2025When the engine is running in the background, the following ensure may be hit in NetworkPredictionService_Interpolate.inl: npEnsure(ToFrame == INDEX_NONE || LocalFrame - ToFrame < Frames.Buffer.Cap ...
Ambient occlusion causing ghosting for animations when viewport is resized on DX11
UE - Graphics Features - Feb 10, 2025Tested regression against //UE5/Release-5.4 @ CL35576357 and the issue did not occur. This is a confirmed regression.[Image Removed] Jira Bot attaches conversation thread from Slack [Image Removed]D ...
[Interchange][FBX] Import model with custom collision prevents socket to be imported
UE - Editor - Content Pipeline - FBX - Feb 5, 2025I would like parity with legacy: 1) only one material 2) socket to be imported Box_Socket file imports same in legacy and interchange: it is just box and socket without collision. ...
COND_InitialOnly property not written to first replay checkpoint after being changed
UE - Networking - Feb 5, 2025When recording a checkpoint, it is treated as an initial replication, as all the changed properties since the channel was opened need to be recorded. This normally results in any initial only proper ...
Check hit when setting push-model array from a different actor's blueprint
UE - Networking - Jan 31, 2025This is due to the same reason behind [Link Removed], as the stack object is passed to MARK_PROPERTY_DIRTY rather than the array property's owner. ...
Capsule component renders incorrectly with non-uniform scale
UE - Simulation - Visual - Jan 30, 2025Capsule component renders incorrectly with non-uniform scale because the render uses the minimum between the X and Y values and the collision code uses the maximum between the two. This issue is men ...
SkinnedMeshComponent::BoneTransformUpdateMethodQueue is never reset in server builds
UE - Rendering Architecture - Jan 27, 2025We reset BoneTransformUpdateMethodQueue in USkinnedMeshComponent::CreateRenderState_Concurrent and USkinnedMeshComponent::SendRenderDynamicData_Concurrent but these code paths are never called in se ...
Disabling bLerpUVs in Nanite Settings of Static Mesh causes texture warping in clusters
UE - Graphics Features - Nanite - Jan 21, 2025The licensee has identified a potential fix by changing if( Settings.bLerpUVs ) to if( Settings.bLerpUVs || UVIndex == 0 ) On line 389 of NaniteBuilder\Private\Cluster.cpp in UE 5.5 ...
A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast it immediately disappears by hitting the world limits
UE - Simulation - Core - Jan 20, 2025A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast ...