Adding a lot of components to an actor can cause the editor to hang

UE - Gameplay - Blueprint - Sep 10, 2015

If the user adds around 400 components to an actor the editor will freeze up and quick responding. ...

[CrashReport] Crash related to lack of disk space - FShaderCompileThreadRunnable::WriteNewTasks()

UE - Rendering Architecture - RHI - Sep 10, 2015

Sent in the unattended mode4.9- In this crash I was trying to do a LOD only build. Originally it was a full build but after four crashes that way I clicked just LOD to see if it would work on its? own ...

AnimGraph not present in Child of AnimationBlueprint with Parent Class: AnimInstance

OLD - Anim - Sep 10, 2015

A Child Blueprint derived from an AnimBlueprint generated with AnimInstance as the parent class will not contain an AnimGraph. ...

Effects.umap causes Standalone and Mobile Preview PIE to Crash

UE - Graphics Features - Sep 10, 2015

When opening Effects.umap from Content Examples in Standalone Preview or Mobile Preview, it'll crash. ...

Alt-tabbing out of a Standalone App or packaged version of a game does not trigger LostFocus or ReceiveFocus

Tools - Sep 9, 2015

If a user uses Alt-tab to change to another window, the ReceivedFocus and LostFocus functions are not called as they would usually be called when using something such as Shift+F1 or Ctrl+Esc. Note: ...

A Blueprint that references a macro from a macro library cannot be saved if the macro is deleted and then the deletion is undone

UE - Gameplay - Blueprint - Sep 9, 2015

A Blueprint that references a macro from a macro library cannot be saved if the macro is deleted and then the deletion is undone. The following error is given: Can't save ../../../../../../UnrealEn ...

Adjusting Agent Radius in RecastNavMesh causes AI to not move

UE - AI - Sep 9, 2015

Adjusting the RecatNavMesh in a map can cause the AI to not move when simulating or playing in viewport. Setting it back to the default value does not fix the issue. I can only reproduce this with ...

Code based BT task breaks after closing/reopening the editor

UE - AI - Sep 9, 2015

A behavior tree task created in code will break in the editor behavior tree. The BTTask node shows as red and says that the class cannot be found. Node must be deleted and replaced to fix the erro ...

Mesh blueprint has incorrect Scaling in viewport when added as a child blueprint component

UE - Gameplay - Sep 9, 2015

If the user converts two static meshes in the level to blueprints, makes them movable, and then adds one to the other as a child blueprint component then the child component will scale incorrectly i ...

Client Characters that slide past the Server Character while on top of a Movable Actor can become de-synchronized from their Server counterpart

UE - Networking - Sep 9, 2015

Client Characters that slide past the Server Character while on top of a Movable Actor can become de-synchronized from their Server counterpart. Does not occur on top of Static Actors. Hard to expl ...