Unreal Engine Issues

Actors in a folder in outliner are moved to the top level by duplicating the world partition level with WorldPartitionRenameDuplicateBuilder

LLM PlatformProcessMemory calculation ignores VRAM, and its calculation of how much memory is used by the process is too low

FLowLevelMemTracker::TickInternal() the ELLMTag::Total (and therefore ELLMTag::Untracked) memory amounts are calculated based only on the result of FPlatformMemory::GetStats(), which on the Windows ...

Vive - Motion Controller Component - Active Scene Capture causes 'Low Latency Update' lag

When a scene capture is active, attachment will lag behind parent. (Similar to [Link Removed] ) ...

Suspend/resume iOS Metal Crash on low end device with MTLCommandBufferErrorMemoryless error with lots of geometry

The project was built in Unreal 4.27.2 binary from the Epic Games Launcher. At this stage we have only observed the crash on devices with a hardware combination of Apple A9 1.8 GHz and 2GB of Memory ...

The AABBTree spatial acceleration structure goes off-sync when physics substepping is enabled in a "low" framerate environment.

When you enable the physics substepping, if you run the console command p.Chaos.Solver.DebugDrawSpatialAccelerationStructure 1, you can see how does not follow the physical object. The user that rep ...

High Virtual Texture Sample/Lookup Cost when using a Virtual Texture in a Material Layer Blend

Some Material Attribute blends in Material Layer Blends can cause Virtual Texture samples to be duplicated in HLSL. This can be avoided by sampling the Virtual Texture in the Parent Material, and pa ...

Navmesh does not update properly on loaded BSP

If a user removes a wall or box from the top down project base level, the navmesh will not update appropriately, creating a wall that the user will not be able to pass on PIE. Additional Note: Thi ...

Rotating a button in UMG and moving it to the edge of the canvas causing incorrect clipping

When rotating a button in the UMG blueprints and then moving through the edge of the canvas panel it causing the button to clip as though it was never rotated. Update: This also happens when placi ...

Artefacts with Volumetric Clouds

(Enduring Games) Please see UDN - Case includes project and potential fix from customer. Need to verify that it does not affect other parts of the volumetric composition. bHasValidSamples is the sam ...

Dialog Windows Still Displayed when Editor is Minimized on Macs

There are some dialog windows that will render on top of other external applications when the editor is minimized and does not have focus.....i.e. 'Building Lighting' and 'Auto-Save' dialog windows. ...