Montage Section Links Don't Update When Section Deleted

UE - Anim - Gameplay - Mar 21, 2025

Hi there, I noticed that there is a problem with Montage Section links not updating when a section is deleted from a montage asset. We had a montage with a "Default" section and a "Loop" section. ...

MeshPaint textures don't work when r.VT.SplitPhysicalPoolSize is set

UE - Rendering Architecture - Mar 21, 2025

Whenever we have a non zero setting for r.VT.SplitPhysicalPoolSize, then mesh painting doesn't function correctly. ...

Physics constraint component doesn't work when placed inside a child actor, while using world partition and streaming is enabled

UE - Simulation - Physics - Mar 21, 2025

Context: In a World partition level, to reduce complexity and provide a scalable solution when creating new projects, grid cell streaming can be enabled. Problem: The problem is that physics constr ...

[AI] The ZoneGraph show flag is in the ZoneGraphEditor module but used during runtime in ZoneGraph module

UE - AI - Navigation - Mar 18, 2025

The show flag for ZoneGraph lives in the ZoneGraphEditor module, but it is used for debugging at runtime by the main ZoneGraph module. There are protections around the type of build and some for EDI ...

Vehicle Template with Thruster Configuration will be affected by force relative to the distance from the origin

UE - Simulation - Physics - Mar 18, 2025

Vehicle Template vehicle with added Thruster Configuration to its VehicleMovementComponent will be affected by force relative to the distance from the origin. At around 200000 the force is enough to ...

Large Memory Allocations When Adding a Landscape_WaterBrushManager

UE - Graphics Tools - Terrain - Mar 17, 2025

When a "Water Body River" is added to a Scene with a Landscape, eleven Render Targets are allocated for the water rendering. These Render Targets are sized according to the resolution of the Landsca ...

Enabling Override Instance Data to a LevelSequencerActor that has a Shot Track can lead to crashing the engine

UE - Anim - Sequencer - Mar 17, 2025

Enabling Override Instance Data to a LevelSequencerActor that has a Shot Track can lead to an Actor being translated really far, or even a crash in the engine. The licensee has encountered a particu ...

Crashes when attempting to use an Instanced Struct inside Control Rig / Rig VM

UE - Anim - Rigging - Control Rig - Mar 17, 2025

Currently, the Control Rig Editor allows the user to use the "Instanced Struct" type, for example for a variable or function input/output. However, this type does not seem to be properly supported ( ...