called custom functions do not update parameter names upon compile, must be replaced

UE - Gameplay - Blueprint - Apr 21, 2015

Parameter names do not update on custom functions that are already called in event graph after compiling blueprint. ...

Standalone Game does not recognize actor blueprints with "Simulate Physics" active

UE - Simulation - Physics - Apr 16, 2015

If a blueprint has "Simulate Physics" active on a component, it will not render when running standalone game. ...

Destroy Component inside of a actor blueprint component does not trigger if target is "self"

UE - Gameplay - Blueprint - Mar 18, 2015

If a "Destroy Component" has a target of self within a blueprint component, the "Destroy Component" node will not trigger. ...

Collapse to Function creates a return node that cannot be deleted

UE - Gameplay - Blueprint - Jan 15, 2015

Collapse to Function creates a ReturnNode that cannot be deleted. When creating a new Function, the ReturnNode is not mandated like this, so this seems inconsistent. Included is a screenshot of thi ...

Layered destructible meshes do not simulate correctly

UE - Simulation - Physics - Destruction - Aug 10, 2015

Layered destructible meshes do not simulate in the same way between UE4 and PhysX Lab. The observed issues are: 1) After first fracture no more damage is applied 2) Areas seem to react differently ...

Separate Translucency for Particles Breaks when Scene Color is used

UE - Graphics Features - May 12, 2015

When using Scene Color in a Particle System's Material with Separate Translucency checked true, all Particles with Separate Translucency checked true placed in the level with the Scene Color Particl ...

Motion Blur creates dark artifacts on bottom of screen in editor

UE - Graphics Features - Aug 15, 2016

When motion blur is active and the view port is in motion there will be a dark artifact visible at the bottom of the screen. Normally this isn't very noticeable however the effect worsens with speed ...

Transitions broken after deleting a state and hitting undo

OLD - Anim - Apr 14, 2015

In a State Machine, deleting a state and hitting undo causes any transitions that were attached to that state to become broken. They appear as the circular transition node icons, but aren't connect ...

[CrashReport] AppleIntelBDWGraphicsGLDriver!USC::CPassSsaAllocatorContext::RollbackSpillFillToCopies()

UE - Platform - Apple - Sep 2, 2016

Error message: SEGV_MAPERR at 0x3a Source Context: Most recent user affected CL: 3106830 (4.13.0) Logs: [Link Removed] [Link Removed] [Link Removed] CrashReporter User Descriptions:UE4.13 immed ...

Engine crash when Scene Capture Component 2D is added to viewport with forward rendering

UE - Graphics Features - Nov 26, 2016

If forward shading is enabled and shadows are disabled, adding an actor with a SceneCaptureComponent2D and static mesh to the viewport will cause the editor to crash. Regression: Yes - this crash o ...