OBJ file causes a `Debug Assertion Failed!` error

UE - Editor - Content Pipeline - Import and Export - Dec 23, 2015

When importing this users file of an OBJ asset there will be an assertion failed error. On the import message if you hit "ignore" until the mesh imports all will work in 4.10 or later. This was no ...

Enabling Tessellation on Materials in 4.11 causes geometry to Disappear

UE - Graphics Features - Dec 23, 2015

Any material that already exists in 4.11p1, with tessellation enabled, causes assigned geometry to disappear. Any material created within 4.11p1, with tessellation enabled and a base color, causes t ...

Reliable multicast RPCs can be dropped

UE - Networking - Dec 23, 2015

As detailed in the linked UDN thread, if a server doesn't receive a network packet from a client in 1.5 seconds, it sets the client connection's ViewTarget to null. This will cause dropped reliable ...

Precomputed AO Mask is no longer working

UE - Graphics Features - Dec 23, 2015

Precomputed AO Mask is no longer working in 4.11 Preview 1. This is a Regression from 4.10.x where this was working as intended. I've attached a zip file with the quick test that can be dropped in ...

Calling the node Show External login UI with the With the Enable Google play support checked on a Samsung S5 will cause the app to crash

UE - Platform - Mobile - Dec 23, 2015

If the user is using a Samsung S5 and attempts to use the "Show External login UI" node with the Google play Support turned on in the project settings then the app will crash when packaged onto the ...

Moving folder of assets crashes editor

UE - Simulation - Physics - Dec 23, 2015

Moving the contents folder for the Dynamic Clocks marketplace asset crashes the editor immediately. Frequency: 5/5 CrashReporter: [Link Removed] ...

Adding specific map to project crashes editor

UE - Gameplay - Dec 23, 2015

Adding map from user's project, CityofEther.umap, crashes editor upon launch or attempting to open the map. Crashreporter: [Link Removed] ...

Editor crashes when exiting and having a widget blueprint open.

UE - Editor - UI Systems - Dec 22, 2015

This is a top crash occurring in the 4.11 Preview Editor crashes when exiting and having a widget blueprint open. Regression: Yes does not occur in 4.10.2. ...

In Persona, Viewport shortcuts remain default after changing Key Binding preferences

OLD - Anim - Dec 22, 2015

After adjusting viewport shortcuts in Editor Preferences, the Persona viewport seems only partially responsive to the changes. It's as if the viewport shortcuts are hardcoded for Persona. Example ...

StaticMeshActors spawned at runtime are not visible until a property has been changed and also have no collision unless set to moveable

UE - Gameplay - Dec 22, 2015

Spawning a StaticMeshActor at runtime results in the StaticMeshActor not being visible until a property has been changed, such as the material for the Static Mesh. The spawned actor will also have n ...