Unreal Engine Issues
Unreal Engine Issues
UNetConnection::NotifyConnectionUpdated always sets MyConnectionId to 1
UE - Networking - Jul 28, 2026This looks to be due to an oversight in how the conditions are checked in NotifyConnectionUpdated, where the “&&” operator results in MyConnectionId always being set to 0 or 1:if (const uint32 MyCon ...
Brick Pattern Artifact in Volumetric Clouds
UE - Rendering - Features - Jul 28, 2026A licensee has reported seeing a repeating brick-like pattern in volumetric clouds when they overlap with very distant geometry (or at the transition between nearby and distant geometry). The artifa ...
Issue with UHLODBuilder::ComputeHLODHash
UE - Engine Scaling - Streaming - Jul 23, 2026The HLOD content hash used to detect changes and trigger rebuilds effectively ignores everything hashed before the source-component loop — including the result of UHLODBuilderSettings::ComputeHLODHa ...
Water ripples stop occurring during long-distance movement in WaterBody with bEnableLocalOnlyTessellation enabled
UE - Graphics Tools - Terrain - Water - Jul 22, 2026Overwriting an anim sequence may scale the play rate of the anim instead of modifying underlying frame rate
UE - ACT Character - Anim in Engine - Jul 21, 2026The frame rate for an anim sequence is not being changed as expected when its being overwritten / re-imported. ...
GPU Validation texture barrier errors for SkyAtmosphere component
UE - Rendering - RHI - Jul 20, 2026A licensee reported that two SkyAtmosphere texture resources do not have proper memory transitions added by the RDG. This happens because in VolumetricCloud.usf, these textures are referenced via Vi ...
Viewport Controller Camera Control Regressions in UE5.8
UE - Editor - Jul 16, 2026In UE5.8 it appears some changes were made to the camera control and navigation in the editor viewports. You can no longer use controller and mouse simultaneously to control the camera. Previously ...
Can't cook a subsequent release when the project uses World Partition.
UE - Core - Data Pipeline - Cooker - Jul 14, 2026A licensee reported getting errors when cooking a subsequent release. The bug is a side effect of CL44557776 which changed the behavior when dealing with generated packages in UCookOnTheFlyServer::G ...
Cine Assembly - Cannot convert any bindings to spawnable
UE - CAPT - Tools - Shot Management - Jul 13, 2026You cannot change any binding type in bindings in Cinematic Assemblies, e.g., you cannot make something spawnable. ...
MovieSceneAnimMixer: Force Root Lock suppression is editor-only, causing PIE vs cooked divergence
UE - ACT Character - Sequencer - Jul 13, 2026The anim mixer's skeletal animation eval task suppresses an anim sequence's Force Root Lock during pose evaluation so the root-motion extraction task (FAnimNextExtractRootMotionTask) can measure and ...