Unreal Engine Issues

Blueprints from UE4 with dangling delegate reroute node crashes on UE5 load

If a project from UE 4.27 or earlier has a blueprint with a reroute node dangling (no outgoing connection) from a Custom Event Node's delegate pin (red), this blueprint will crash when loaded in UE ...

Delayed movement adjustment can include incorrect movement mode

It's possible for the server to send a client's character a movement correction with the wrong movement mode.  This can occur if a project has client adjustment throttling settings enabled:  Networ ...

In-editor hitch when deleting one actor in a world with many loaded actors

When editing a level with many actors (1000+), deleting an actor results in a noticeable hitch: the editor becomes unresponsive for seconds. This hitch becomes longer the more actors are loaded and ...

Renaming a Blueprint interface asset doesn't update the ImplementedInterfaces list in the Blueprint editor's Class Settings tab

There is no UI refresh for the Implemented Interfaces list in the Blueprint editor UI after a Blueprint Interface asset is renamed in the Content Drawer. Consequently, the interface cannot be remove ...

Foot Placement tries to step on vertical surfaces

From a community member: Are you responsible also for the FootPlacement node? Its fantastic, but there is a possible bug with the walkable surface handling. It tries to step even on vertical surfac ...

Ensure/failure when changing the class of a scene component that has bVisualizeComponent enabled

Failure occurs at compile time during GC when the replacement component that we create is being destroyed. This component includes the BillboardComponent instance that's attached to the scene compon ...

Unable to edit double variable in property matrix

Since UE5.0, cannot edit double variables in property matrix. In UE4.27, it worked correctly and could be edited from the property matrix. This is because double variables are not supported in SProp ...

Collision between physicalized actors and instanced static meshes produce warnings.

Collision between an instanced static mesh and a physics simulating actor (with "simulation generates hits events" enabled) results in the following warning: LogChaos: Warning: Collision handler en ...

Denoting a custom data source root for import/export pipeline is not hooked into file path resolution for driving other parts of the UI

Crashes occur when creating a static texture from a non-HDR Cube Render Target in DirectX12

While working with DirectX 12 in the project settings, the editor crashes by check() code when attempting to create a static texture from a non-HDR Cube Render Target asset. This crash doesn't occur ...