Unreal Engine Issues

City Sample - Parked Cars, Traffic, and Crowds do not spawn while in PIE

Repro Rate 10/10 Issue is a Regression as it doesn't occur in 5.1 Parked Cars, Traffic, and Crowds spawn in as expected when launching the project in Game Mode or a Packaged Build Going into the ...

Dropped encryption ack control message can result in connection failure

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 ...

UProperty with in a UStruct show wrong reset value arrow

UDN Link: https://udn.unrealengine.com/s/case/5004z00001ndG9mAAE/tarray-uproperty-element-do-not-get-the-correct-default-value ...

Orthographic Rendering - Lumen Reflection Artefacts

Edits to floating point properties do not propagate to blueprint object instances if old values have more than 6 decimals of precision

[Link Removed] JH 2023-04-28 01:12:36 UTC Editing any object's float/double property via an Editor details panel will be truncated if it has more than 6 decimals of precision. (e.g. if I type in 0.12 ...

Nanite flag is set to Enable for all static mesh materials when Nanite Tools is opened

The expected result is that the Used with Nanite flag is enabled when Nanite is enabled in Nanite Tools. Currently, opening Nanite Tools enabled the flag even for non-Nanite meshes. ...

Legacy Input mappings and Gameplay Debug Mappings cannot "consume" Enhanced Input actions

Window to select Skeletal Mesh does not pop up when editing a new IK asset

When opening a new IK rig, the window that prompts the user to select a skeletal mesh does not open immediately. However, a skeletal mesh can still be selected in the details panel in the IK window. ...

Crash after generating HLODs for approximated meshes that have all triangles culled

The crash occurs when FWorldPartitionHLODUtilities::BuildHLOD attempts to build an approximated mesh that has all of its contents culled during generation, this can happen when an approximated mesh ...

Foliage instances don't move with a static mesh when it is shared between two foliage actors

From Licensee: The bug comes from the call of the function `FoliagePartitioningUtils::Update` in the method `AInstancedFoliageActor::MoveInstancesForMovedComponent`. When the function `FoliageParti ...