Iris - high latency causes initial hitch for newly spawned actor's movement

UE - Networking - Iris - May 20, 2024

This may possibly be due to FReplicationWriter::CanSendObject waiting for CreateConfirmation. ...

Blueprints might get corrupted after inheriting multiple times.

UE - Gameplay - Blueprint - May 17, 2024

Blueprints might get into a corrupted state when they are inherited for a big number of times. Starting from a C++ class, if you then create a BlueprintClass from the C++ class, and keep creating ne ...

"Literal Enum" BP node outputs wrong value when the input pin is connected

UE - Gameplay - Blueprint - May 17, 2024

This behavior was not observed up to UE 4.19, but it can be reproduced in all versions from 4.20 to 5.4. When a "Literal Enum" node is used inside a blueprint and an enumeration value is chosen fro ...

"Reference space" when exporting LevelSequences with "Override Instance Data"

UE - Anim - Sequencer - May 15, 2024

When exporting a Cinematic Camera as FBX and importing it back, all transforms and Camera view are shifted. This happens when in Level Sequence Actor has the property "Transform Origin Actor" set to ...

Depth of field and Refraction issue

UE - Rendering Architecture - May 15, 2024

Refraction does not adjust the scene depth texture, leading to a mismatch between Scene Color samples and Scene Depth samples. ...

Water plugin: editor defaults for water wave assets are not saved

UE - LD & Modeling - Terrain - Water - May 15, 2024

Replication errors when connecting Shipping build to Test/Development build

UE - Networking - May 14, 2024

See linked UDN for more info. This issue was reported for Iris, but I believe package map errors occur in the current replication system as well. ...

Renaming assets hits an ensure related to circular redirect

UE - Foundation - Core - UObject - May 10, 2024

You will hit the ensure condition: LogOutputDevice: Error: Ensure condition failed: !SeenPaths.Contains(CurrentPath) in Engine\Source\Runtime\CoreUObject\Private\Misc\RedirectCollector.cpp] [Line ...

Crash when seamlessly travelling from World Partition map

UE - Networking - May 9, 2024

Based on the licensee's report, the crash seems to be occurring due to the WorldDataLayers actor, and setting this actor to never be dormant seems to resolve the issue. ...