Overriding Component class does not work properly in grandchild class BP

UE - Framework - Blueprint - Feb 22, 2023

If you set ComponentClass override in child class BP and grandchild class BP respectively, it is ignored in grandchild class. This issue is probably related to [Link Removed]. The fix for [Link Rem ...

Create a Material Editor node that exposes the VertexID

UE - Rendering Architecture - Materials - Feb 20, 2023

A UDN user has requested that we expose the VertexID as a Material Editor graph node. According to a brief thread with [Link Removed] , this is a useful feature to add. https://udn.unrealengine.com ...

BlackboardComponent observer can be called for the wrong key

UE - AI - BehaviorTree - Feb 7, 2023

We need to, at least, prevent this by clearing observers when running a new BT using a different blackboard. Must also think that this might affect licensees relying on the current behavior (might h ...

TSR ghosting when see through translucent wall

UE - Graphics Features - Feb 7, 2023

see through a translucent material will cause ghosting  This issue did not occur in 5.0, it occurs when using TSR on UE 5.1 or later. ...

Animation Layer Interface content filter overrides other content filters

UE - Editor - Workflow Systems - Jan 30, 2023

Animation Layer Interfaces are overriding the filter making it so only that asset type is visible even when paired with other filters.  There is an exception to this with the blueprint interfaces fi ...

FBasePassMeshProcessor crashes in ODSC code because the WorldGridMaterial doesn't support translucency

UE - Rendering Architecture - Jan 30, 2023

UDN: [Link Removed] Slack: [Link Removed] Then, the return value of TryAddMeshBatch is determined by FBasePassMeshProcessor::Process. When the crash occurs, GetBasePassShaders fails to get the shad ...

Make literal container nodes (e.g. MakeArray) do not cast object ref output terms linked to interface-typed input pins.

UE - Framework - Blueprint - Jan 28, 2023

As with most nodes, object reference outputs can be directly connected to interface-typed inputs on "make container" nodes (e.g. "MakeArray") if the object's class type implements the interface clas ...

Niagara particles bounce instead of resting on AMD GPU in SM6

UE - Graphics Features - Jan 27, 2023

Additional Info URL [Link Removed]…]2F00O4z000006EGZXEA4%2Fview%3FqueryScope%3DuserFolders Link to repro - [Link Removed] Old UDN question that may be relevant, similar visual bug - [Link Removed] ...

Previewing a node overrides the output of PostProceessInput0 in a Post Process Domain Material after previewing has stopped

UE - Rendering Architecture - Materials - Jan 26, 2023

This is not a regression. Tested in //UE5/Release-5.1 CL20979098 Previewing a node overrides the output of PostProceessInput0 in a Post Process Domain Material after previewing stops. ...

Build geometry removes spline component visibility

UE - Framework - Components - Jan 23, 2023

A spline component will become invisible after building geometry with the spline actor in the level. This issue is occurring in //UE5/Release-5.1 @ Binary CL 23058290 This issue is NOT occurring ...