Color shifting occurs from screen probe gather ping-pong when Lumen active

UE - Graphics Features - Lumen - Apr 29, 2024

A subtle yellow tint color shift occurs when Lumen is active due to usage of R11G11B10_Float targets, mostly from r.Lumen.ScreenProbeGather.SpatialFilterProbes where we ping-pong between R11G11B10_F ...

Crash from RDG limit when using Warmup

UE - Niagara - Rendering - Apr 29, 2024

We need to better detect when we need to flush to avoid hitting the RDG limit. There is no test project at the moment, more details can be found here ...

"Consume pointer input" on Common User Widget does not work on iOS, FReply::Handled not respected

UE - Editor - UI Systems - Apr 29, 2024

From a UDN, they also mentioned:  Update: I added CommonUI to the test project to try the "Consume pointer input" setting. It behaves the same way as our custom input blocking widget in that the in ...

USplineComponent still editable in viewport despite setting as "read-only".

UE - Gameplay - Blueprint Editor - Apr 29, 2024

A spline component continues to be visible and editable in-editor despite all attempts to disable the functionality through the component's settings or uproperty specifiers. ...

[AI] Crash in UGameplayDebuggerLocalController::OnDebugDraw

UE - AI - Debugging - Apr 27, 2024

UGameplayDebuggerLocalController::OnDebugDraw crashed with a dereferenced nullptr for CachedReplicator. ...

Unnecessary warning "LogChaosCloth: Warning: Invalid pattern data. Num pattern indices 0 != Num welded indices"... for all SKM cloth

UE - Simulation - Physics - Character - Apr 26, 2024

This warning is technically correct, panel-based cloth is disabled, but it's expected and there's nothing the user can actually do about it. This comes from a UDN. ...

GPU Crash in Niagara Fluids template when WorldSpaceSize has a component at 0

UE - Niagara - Apr 26, 2024

The NiagaraFluids plugin provides several Niagara System templates to use as a starting point for the user's own Systems. The templates in category "3D Gas", such as "Grid 3D Gas Explosion", include ...

GameplayTagQuery in editor can fail to update to new values or reset after being cancelled

UE - Gameplay - Apr 25, 2024

When editing a GameplayTagQuery inside of the editor, there are times when the query editor will not update the query when selecting Ok or fail to return the query to its original state before editi ...

Ray Traced Shadows ignore mesh occlusion on water when enabled

UE - Graphics Features - Ray Tracing - Apr 25, 2024

A forum user reported an issue where object geometry occlusion would be missing when Ray Traced shadows were enabled. I was able to reproduce the issue internally where occlusion seems to be missing ...

Crash editor when raytracing is enabled and enter kanji characters into TextRenderActor

UE - Graphics Features - Ray Tracing - Apr 25, 2024

The editor crashes when entering Kanji characters into TextRenderActor with raytrace enabled. This does not happen with English text.  ...