Unreal Engine Issues

When r.SSR.Stencil is enabled, there is wrong logic observed.

When r.SSR.Stencil is enabled, the areas with high roughnesss are not discarded and Unlit materials are incorrectly handled. See the linked EPS case (Additional Info URL) for a full explanation of ...

Crash when adding Actor Array Element to a Sequencer Event Struct

Crash when adding Actor Array Element to a Sequencer Event Struct Error message: Assertion failed: 0 [Link Removed] [Line: 56] Source Context: 42 N = FName(*StringName); 43 ...

ISM + WPO = broken motion vectors?

Instanced Static Meshes will have incorrect velocity if a Material uses World Position Offset. Fixed WPO in a material causes significant velocity on the ISM. This was also replicated in //UE5/Rele ...

r.Tonemapper.Sharpen > 0 produces translucent artefacts on SceneCaptureComponentCube

Shadow doesn't update for a moving nanite mesh (fixed in 5.4)

When a nanite mesh moves, the shadow does not. ...

Fix sampling frame rate not properly setup for dynamic montages

Crash when casting to owner from AnimGraph

Crash occurs when casting back to the pawn owner from the Anim Graph. In this case, it is being used for "Copy Pose from Mesh" Workaround: Cast to Owner from Event Graph, defining variable as the ...

ApplyLocalExposure uses Output_ExtentInverse instead of Output_ViewportSizeInverse for bilateral grid UV

The ApplyLocalExposureCS shader in PostProcessLocalExposure.usf computes UV coordinates for the LumBilateralGrid 3D texture using Output_ExtentInverse (1/RenderTargetSize) instead of Output_Viewport ...

Crash on draw material to rendertarget

This crash has started occurring in 4.15.2. It seems to be a regression from 4.15.1. ...

CLONE - Crash on draw material to rendertarget

This crash has started occurring in 4.15.2. It seems to be a regression from 4.15.1. ...