PhysicsConstraintComponent not editable on instances.

UE - Simulation - Physics - May 25, 2016

When adding a PhysicsConstraintComponent to a class, it can be properly edited in the Blueprint editor. However, if trying to manipulate it via the instance editor, it is "locked down" ...

Toggling SetSimulatePhysics state on a Primitive component with a child PrimitiveComponent leaks PxShapes

UE - Simulation - Physics - May 23, 2016

FBodyInstance::Weld did not check to see whether or not child components were already welded to a parent. This meant that whenever Weld was called, ShapeToBodiesMap would continue to grow in size, e ...

Particle light flickering with certain Post Process Settings

UE - Graphics Features - May 23, 2016

Particle lights cause flickering when using either FXAA or no AA, but turns into black squares on the screen when you enable Gaussian Blur Regression: Yes, does not occur in 4.10 ...

Fbx importer crash when importing one "line" triangle

Tools - May 23, 2016

When we have a mesh containing one triangle with two vertex at the same location the importer is crashing. It crash because rejecting the line triangle result with a mesh containing no vertex which ...

[CrashReport] UE4Editor_Engine!UAnimMontage::IsValidAdditive() [animmontage.cpp:702]

OLD - Anim - May 19, 2016

Error message: Stack overflow - code c00000fd (first/second chance not available) Source Context: 687 if (SyncGroup != NAME_None) 688 { 689 CollectMarkers(); 690 ...

Any nodes after a reroute node do not list stats in the Blueprint Profiler

UE - Gameplay - Blueprint - May 18, 2016

No Profiler stats are being listed for nodes after a reroute node. Just the nodes are listed with no stats present. ...

UCS continuously runs while a blueprint's thumbnail in content browser is focused

UE - Editor - Content Pipeline - Content Browser - May 18, 2016

Blueprints with a mesh call the UCS continuously when focusing the thumbnail in the content browser. This is easily visible with a Print String in the UCS causing log spam. This does not occur in ...

Attempting to Paste Behavior Tree Task with Decorators Pastes to Wrong Location

UE - AI - May 17, 2016

Attempting to paste a task that contains decorators does not paste it near the mouse location, and pastes it off screen instead. Found in 4.11.2 binary. Reproduced in 4.12 Preview 4 binary and Main ...

In Two Bone IK node, Joint Target Location values are exposed on node when it isn't in Details panel

UE - Anim - Rigging - May 17, 2016

When placing a Two Bone IK node in the Anim Graph, the Joint Target Location input will be exposed on the node, even though, by default, Join Target Location Space is set to Component Space. Join T ...

Able to grab the left side of the screen in standalone game window while playing

UE - Editor - UI Systems - Slate - May 16, 2016

In a standalone game window, the user is able to grab the left side of the standalone game window, making it possible for the user to grab and resize the window while playing. Could be similar to [ ...