Large distant objects lose skylight lighting

UE - Graphics Features - Jul 18, 2022

Duplicating a BP function doesn't reference the correct local variables

UE - Gameplay - Blueprint Compiler - Nov 10, 2022

Looking at the T3D snippet of the get variable node, the VariableReference points to the local variable of the original function instead of the new one.  ...

Cloth simulation breaking after scaling > 10

UE - Simulation - Physics - Character - Jan 4, 2023

Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. Simulation appears to work fine when scaled by 10, but any higher and it starts to mis ...

Dropped encryption ack control message can result in connection failure

UE - Networking - Apr 28, 2023

When connecting a client using encryption, the server's NetConnection sends the encryption ack and then immediately enables encryption (UNetConnection::EnableEncryptionServer). In the case where the ...

Water reflections and GI flicker in 5.4 and 5.3 (fine in 5.2)

UE - Graphics Features - Mar 7, 2024

Since 5.3 customers have been reporting flicker with water surfaces, demonstrating that in 5.2 this flicker is not present. [Link Removed] ...

LogAssetRegistry Error produces a path error when referring to assets on a junction/hard link/soft link

UE - Foundation - Data Pipeline - Cooker - May 23, 2024

IAssetRegistry::GetChecked().ScanPathsSynchronous() now eventually calls FPathExistence::LoadExistenceData and logs the errorFPathExistence failed to gather correct capitalization from disk for <p ...

UDebugDrawService doesn't display text on Blueprint Editor viewport from UDebugComponent

UE - AI - Debugging - Jun 17, 2024

By creating a DebugComponent, the texts added to this component are not displayed in the viewport of the Blueprint editor. This is because the UCanvas reference that is being passed is that of the ...

Using Custom Primitive Data as Final Colour in a UI Material crashes the engine with a missing uniform buffer

UE - Rendering Architecture - Materials - Jul 3, 2024

Using custom primitive data as an input in a UI material causes the engine to crash in the RHI thread. The exact crash is "Missing uniform buffer at slot 1, stage SF_Pixel." at Engine\Source\Runtime ...

Crash when closing a connection from listen server when using

UE - World Creation - Worldbuilding Tools - World Partition - Oct 3, 2024

Vive: Exiting VRPreview / VREditor mode can cause last stereo image to freeze in HMD

UE - Platform - XR - Apr 8, 2016

This seems to only happen when the editor has focus after closing VRPreview / VR-Editor. If you alt-tab have focus on another program it goes to SteamVR waiting room. ...