PCGs Duplicate Point node option to apply in Relative Space has metadata warnings and crashes editor.

UE - World Creation - Procedural Tools - Jan 21, 2026

When using the PCG Duplicate Point node's "Direction Applied in Relative Space" option, this deletes or messes with the output metadata and, if connected to an output or using it's debug mode, will ...

UEditorEngine::OnAllPIEInstancesStarted() called prematurely, multiple times, while PIE clients are starting

UE - Gameplay - Jan 21, 2026

Context UEditorEngine::OnAllPIEInstancesStarted() is a virtual function that gets called when launching Play-in-Editor. It can be overridden if the game project chooses to introduce a subclass of U ...

Multicast RPCs may be sent to clients in a different level with Replication Graph

UE - Networking - Jan 20, 2026

UReplicationGraph::ProcessRemoteFunction does not check if the client has the same loaded world as the server when sending a multicast RPCs. For actors that are persisted partway through a seamless ...

Sequencer: Camera blends restore to incorrect view target after Keep State

UE - Anim - Sequencer - Jan 20, 2026

When a Level Sequence’s Camera Cut track with When Finished = Keep State is played, the “original state” is persisted into the PreAnimatedStorage array inside FPreAnimatedCameraCutStorage. From the ...

Material Analyzer misreports static params for Material Layers

UE - Rendering Architecture - Materials - Jan 20, 2026

When analyzing materials that use Material Layers, Material Analyzer reports that multiple Material Instances “share the same static parameter array” and therefore recommends reparenting so that onl ...

[Enhanced Input] The action instance data is incorrectly reset when you call "Add mapping context" on the same mapping multiple times

This is somewhat related to [Link Removed] and was brought up by a [Link Removed] Setting the CVar input.bRespectIMCPriortyForTriggers to false resolves the issue, but would re-introduce [Link Remo ...

Clearcoat material behaves differently between 5.5 and 5.7

UE - Graphics Features - Jan 16, 2026

Starting with Unreal Engine 5.7, specular reflections on clearcoat Materials are less pronounced. Unreal Engine 5.5 tests performed on //UE5/Release-5.5/, CL: 41545209 ...

Optimize closing the Material Editor and Material Instance Editor

UE - Rendering Architecture - Materials - Jan 15, 2026

[Link Removed] We always need to build texture data which requires building debug view mode shaders to do some rendering to get texture densities. Can we find another way to do this? Can we at le ...

Character unnecessary step down during PHYS_Flying mode

UE - Gameplay - Player Movement - Jan 15, 2026

When MovementMode is set to PHYS_Flying, the character may unexpectedly step down by MaxStepHeight when colliding with a wall near a ceiling. This occurs because UCharacterMovementComponent::StepUp ...