Unreal Engine Issues

Fixing a Blueprint's compilation error after editor reload causes instances to lose transform

Saving and reloading a Blueprint instance with a compilation error, a.k.a., "Bad Blueprint" will lead to a transform reset when the Blueprint is successfully recompiled. ...

Reset of bone proxy in anim editors detail panels doesn't re-enable live update of tranforms

The bone proxy details customization for the animation editors doesn't currently reset modifications correctly.  When a transform channel is modified and then reset, the bone proxy doesn't start liv ...

[AI] Moving navmesh and navbounds to a sublevel results in a level nearly twice the size expected

Using World Composition, moving the Navmesh and NavmeshBounds from the persistent level to a sub-level results in the size of the navmesh sub-level being roughly twice the size of the decreased size ...

OSS Null won't find multiple LAN sessions hosted by a single instance

This happens because of how FLANSession::Tick will handle receiving multiple response packets from a single host. FLANSession will cache the ResponseGuids of any incoming host response packets, so i ...

Overriding Component class does not work properly in grandchild class BP

If you set ComponentClass override in child class BP and grandchild class BP respectively, it is ignored in grandchild class. This issue is probably related to [Link Removed]. The fix for [Link Rem ...

Duplicating a Blueprint with a function call node connected to a variable of the source Blueprint type results in a compile error in the duplicated asset.

If a Blueprint asset contains a function call node for which the referenced function context is set to 'self', if the "Target" pin is connected to a type that equates to the owning Blueprint asset ( ...

Global Distance Field Not Working With World->SetNewWorldOrigin

Create a Material Editor node that exposes the VertexID

A UDN user has requested that we expose the VertexID as a Material Editor graph node. According to a brief thread with [Link Removed] , this is a useful feature to add. https://udn.unrealengine.com ...

Shading model node in material layer could not override the material shading model property as expected.

Can start PIE in New Editor Window during PIE instance's online login

When starting a PIE instance using the "Selected Viewport" play mode, the ability to start another PIE session is blocked (handled in FInternalPlayWorldCommandCallbacks::PlayInViewport_CanExecute). ...