The GetCombinedForces put out wrong value when the vehicle is reversing

UE - Simulation - Physics - Aug 19, 2022

Reproduced 3/3 times. A similar bug occurred with PhysX ([Link Removed]) Check the function:  FVector FSimpleAerodynamicsSim::GetCombinedForces(float VelocityIn) if the velocityIn is negative, th ...

Engine freezes when Level Sequence format is in seconds

UE - Anim - Sequencer - May 22, 2023

When using the jumpbox with a sequence that is in seconds (not fps) the engine will freeze. This issue is occurring in Binary //UE5/Release-5.2 @ CL 25360045 This issue is occurring in Binary //UE ...

Within Water Body Custom setting the Water Mesh Override to a Nanite mesh causes a crash

UE - LD & Modeling - Terrain - Water - Jun 28, 2023

This is not a regression. Tested //UE5/Release-5.1 CL23901901 Within Water Body Custom setting the Water Mesh Override to a Nanite mesh causes a crash. This seems to be the case with any Nanite ena ...

Regression: FGameplayTag and FGameplayTagContainer pin value modification is not undo/redoable

For nodes with an FGameplayTag or FGameplayTagContainer pin, when changing the tag value (Pin->DefaultValue) and triggering Undo/Redo, the pin modification is not undone. Rather, it undoes the previ ...

ExportMaterialUVDensities() gets the incorrect value where the alpha channel is referenced

UE - Rendering Architecture - Materials - Apr 16, 2024

ExportMaterialUVDensities() gets the incorrect value where the alpha channel is referenced (e.g. RegisterIndex of the texture is [3] or [7]) because FMeshRenderer::RenderMaterialTexCoordScales() use ...

Ocean spline impacting landscape way outside of its bounds

UE - LD & Modeling - Terrain - Water - Oct 4, 2024

From licensee: "[...] it seems that regardless of our settings and how far away the control spline is from the landscape edge, one corner of the landscape will always be impacted by the falloff and ...

MetalRHI Asserts When Using "Profile GPU" With RHI-Thread/Parallel-Execution

UE - Graphics Features - Sep 14, 2016

When the RHI thread is enabled (with or without parallel-execution) for Metal it isn't currently possible to run "profilegpu" because the GPU timestamp emulation code isn't multi-thread safe and pro ...

AddTimedDisplay causes crash when changing level

UE - Gameplay - Dec 8, 2022

RemoveAfterSecondsLambda in AddTimedDisplay function may access released memory during level transitions. The following workaround works : void UViewportStatsSubsystem::AddTimedDisplay(FText Text, ...

Buffer Visualization for DecalMask is missing

UE - Graphics Features - Feb 29, 2016

The Buffer Visualization for DecalMask is no longer an option. Also, when looking at the Buffer Visualization Overview the DecalMask slot has been removed. See attached image for comparison Worke ...