Unreal Engine Issues

Reparenting an actor BP to EditorUtilityActor does not give access to editor utility nodes

Ran into this while answering a UDN. A user was expecting to find the blueprint functions available to Editor Utility Blueprints after reparenting their actor to EditorUtilityActor. I confirmed that ...

Network Emulation outgoing dropped packets on client higher than expected

Under certain network emulation settings, it looks like outgoing packets from the client will be dropped in groups (around 4 or more packets at a time) rather than individually. This leads to the ac ...

StartPlayInEditorGameInstance doesn't consider bStartInSpectatorMode for client instances

In UGameInstance::StartPlayInEditorGameInstance, the server instance will go through the normal process of creating the URL using BuildPlayWorldURL, which checks the FGameInstancePIEParameters' bSta ...

Vector NotEqual / != displays default tolerance of "0" instead of "0.0001"

If this is just a display issue, it's still fairly significant because a tolerance of 0 and anything else are very different. I have not confirmed if it's only display or if the comparison is actual ...

Plugin cannot be created when adding the "-" character

Repro Rate: 10/10 This issue occurred in the live build of //UE5/Release-5.1 at CL 23058290. This was regression tested against //UE5/Release-5.0 at CL 20979098 and is confirmed to not be a regres ...

Rigidbody not moving when small force is applied, and only rotates when angular impulse ≥ 7

Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...

Lock Content Browser resets when restarting the editor

Regression: Tested in UE5/Release-5.0, the issue did not occur so this is a regression. ...

Characters can not pass through back faces of triangle meshes

Here is a work around bool FTriangleMeshSweepVisitor::VisitSweep(const TSpatialVisitorData<int32>& VisitData, FRealSingle& CurDataLength) { ... if (CullsBackFaceSweepsCode != 0) { if ...

Fbx Importer: Need to clamp incoming vertex color

Geometry Collection behavior does not change when changed by BP

Reproduced 6/6 times. This seems to affect all "Set" functions for Geometry Collection Components, such as Setting Object Type from Static to Dynamic, or changing Collision Type. ...