Crash in FPipelineFileCacheManager::RegisterPSOStats

UE - Rendering Architecture - Oct 25, 2024

The game can crash when one thread clears RunTimeToPSOUsage while another thread is expecting it to contain a PSO it is registering stats for. Thread A:  calls CacheGraphicsPSO() Thread B:  calls C ...

Users are unable to create projects when the default project location is a networked drive

UE - Editor - Workflow Systems - Oct 23, 2024

There have been multiple reports of this issue, particularly from schools, over the last 10 years:https://forums.unrealengine.com/t/invaild-folder-path-with-network-user-drives/283475https://forums. ...

TraceString for TChar strings has an erroneous return statement leading to unreachable code

UE - Foundation - Insights - Oct 23, 2024

In StringTrace.cpp, the TraceString(const TCHAR* InString) function has an erroneous return statement before UE_TRACE_LOG_DEFINITION within the branch checking if the string is already in the set. ...

D3D12Texture::Lock incorrectly sizes staging buffer when locking block compressed resources

UE - Rendering Architecture - RHI - Oct 23, 2024

D3D12Texture::Lock computes the size of the staging buffer on Line 1541 of D3D12Texture.cpp. This size uses the RowPitch, which for BCn resources encapsulates the size in bytes of a single row of bl ...

Objects animated in Sequencer fail to trigger collisions against stationary characters with character movement components

UE - Gameplay - Player Movement - Oct 22, 2024

When an object, such as a cube, is animated in sequencer and that object's path intersects a stationary character with a character movement component, the object will pass through the character with ...

Nanite - Skinned Meshes not working.

UE - Graphics Features - Oct 21, 2024

The Nanite information and views from the Static Mesh Editor are not available to Nanite Skeletal Meshes in the Skeletal Mesh Editor. ...

Lumen doesn't handle Area Lights Reflection Occlusion well

UE - Graphics Features - Lumen - Oct 18, 2024

Decals custom depth/stencil side effect from Lumen

UE - Graphics Features - Oct 15, 2024

The order of passes related to Decal rendering (without the DBuffer) and CustomDepth is changed by the CVar "r.Lumen.AsyncCompute", even when Lumen is not enabled. This causes Decal Materials that ...

Actor foliage does not respect "foliage.CullDistanceScale"

UE - World Creation - Worldbuilding Tools - Oct 15, 2024

Actor foliage does not respect the "foliage.CullDistanceScale" console variable. This was brought up in a UDN: [Link Removed] ...

Nanite foliage doesn't respect "foliage.MaxEndCullDistance"

UE - Graphics Features - Nanite - Oct 15, 2024

Nanite foliage static meshes do not respect the "foliage.MaxEndCullDistance" console variable setting. This was brought up in a UDN: [Link Removed] ...