Unreal Engine Issues

BP Component breaks GPU Collision

When an Arrow Component is added to a blueprint and made visible in Game, a GPU Particles collision will fail until the arrow component is outside the Camera Frustum or turned back to hidden in game ...

Modifying an H/ISM instance will cause selection highlights to be inaccurate

Exposure Is More Extreme In High-End Mobile Preview Modes

In high-end mobile preview modes the exposure will return much more exaggerated results. This is related to the new default tone mapper settings since changing r.TonemapperFilm to 0 solves the issue ...

WorldContextObject is null in BP function library

Issues converting enum to byte in BP

User experienced unexpected AI behavior and was kind enough to share a stripped down version of the project. I was able to nail down issues user was experiencing to failed enum-to-byte conversion. U ...

World Delta seconds appears to Cause a miss calculation (regression 4.12.3 -> 4.12.4)

If the user uses world delta seconds in a calculation there appears to be some incorrect values. Note there is also a users project attached if you would like to look at that example. ...

Stereo layer appears to move when used with the Oculus Rift

Stereo layer appears to move/slide as the player moves the HMD from side to side when using the world locked setting for the stereo layer. ...

Crash on startup with a Blueprint deriving from an abstract class with a SpriteComponent

Appears to be an issue with load order and the timing of when we populate the 'ShowSpriteCommands' and 'SpriteIDToIndexMap' containers, which we assert on if they're not the same size. The original ...

Feature Request: Make WASD movement cancel out movement when you press keys in opposite directions

slack discussion: [Link Removed] ...

Editor crashes opening MyCharacter BP after converting to 4.5

On a Mac, when opening a custom character blueprint from a project that has been converted to 4.5 from a previous version of the engine, the engine immediately crashes. ...