Unreal Engine Issues

Blueprint functions with component targets lose component target when copied/pasted

Functions that are created with specific component targets lose their target when copied/pasted. ...

After clearing the options of a ComboBox (String) widget it will not update

If a user uses clear options on a combo box (String) and then tries to add new and different data, the data that is added was the data that was removed with the clear options node. ...

Two-Sided Shadowing on Planes and Landscapes with non-flat Normals are Incorrectly Lit

When using a Two-Sided Material and Shadowing Two-Sided for a Plane or Landscape, with non-flat normals, there are parts of the material which are still illuminated. I have provided a test project ...

LIVE: Advanced Lighting Map (new default map in Release) has a Skybox the generates Error on Lighting Build

Opening the Advanced_Lighting Map, the new default map with 4.5.0 and 4.5.1, the Skybox has 4 UV Channels but all of them have overlapping UVs. WORKAROUND - You can Auto Generate UVs for the Skyb ...

Motion Blur Appears Exaggerated with Planar Reflection Actor in Level and Accurate Velocities Setting Enabled

Motion blur seems exaggerated with a Planar Reflection Actor placed in the Level and the Support Accurate Velocities from Vertex Deformation setting enabled. I am assuming this is happening becaus ...

Static Meshes Disappear with Media Player Asset Applied as Material in Standalone or Packaged Game

Static Meshes with a Media Texture applied will disappear when played in Standalone or in a Packaged Game. Regression? Yes, this is not the same behavior in the 4.11 version of the engine. Note I ...

Multiplayer Shootout is broken in 4.12

Multiplayer Shootout is broken in 4.12. Appears to be caused by the AimOffset animations being imported at the incorrect scale. Regression: Yes, does not occur if you create a 4.11 version of the ...

Long comments typed directly into the comment nodes or context menu comment text box are truncated

Particle System Warmup Time causing Crash with Light Module and High Quality Lights

A crash occurs when Opening a level with a Particle System that contains a warmup time and a Light module with High Quality Lights checked. This crash seems very isolated and specific as it does no ...

OSVR does not consistently render to HMD if OSVR Server is not open prior to opening editor/cooked game

It seems like if OSVR_Server is not launched prior to opening the editor, vr-preview functionality will not work (even though the editor starts OSVR_Server at launch). Seems like server must be open ...