Unreal Engine Issues

When enabling virtual texture lightmaps it looks different viewing

After switching the Virtual texture lightmap on/off, it looks different. It looks like there is a difference in the light map because there are some missing shadows (see attached screenshots). ...

Poseable mesh incorrectly rotates if "Set Bone Rotation by Name" is used in construction script

Using "Set Bone Rotation by Name" in the construction script of a blueprint using poseable meshes incorrectly rotates the mesh. ...

GPU Particle Emitters not Inheriting Velocity from Event Generator Particle Module

When using an Event Generator in a particle emitter that passes velocity for other emitters to inherit, only CPU emitters take on the velocity, and not the GPU emitters. In the test case/project I ...

Game shifts position when switching between fullscreen and windowed mode

A packaged game that is ran with -fullscreen shifts position when entered windowed mode. I am not seeing this issue when running an unpackaged project with -game -fullscreen. I am also not seeing t ...

FBX: Camera imports to Matinee with skewed position and rotation

When reimporting a .FBX matinee Actor, the X and Y axis of the animation are interchanged. ...

Incorrect override material properties when doing "Replace References" to material instances in Content Browser

Bilinear Filtering creating Artifacts on Edges of Paper2D Sprites

A user is reporting some artifacts on the edges of his sprites when using bilinear filtering for the texture settings. These artifacts do not appear when using the Paper2D texture settings (Nearest ...

Atmospheric Fog ignoring Hidden Actors option within SceneCapture2D

Atmospheric Fog is still being rendered within Render Targets using the 'Hidden Actors' option within a SceneCapture2D actor/component. The show flags for the actor work for Atmospheric fog and oth ...

Memory leak when opening and closing blueprints

When opening and closing blueprints within the editor, the memory continues to go up and doesn't seem to release the memory once the blueprint editor is closed. ...

Using Fixed Frame Rate Increases the Speed of Auto Save

Using a lower fixed frame rate (i.e. 20fps) causes the auto save timer (when set to the default of 10) to count down in 3 seconds. Found in 4.10 Preview 2 CL 2733139. Reproduced in 4.9.2 binary an ...