Unreal Engine Issues

Duplicated Editor-Runtime actors won't tick

When duplicating an Actor at Runtime, the duplicated Actor won't execute any tick events when duplicated from the World Outliner or Alt-clicked and dragged in the Viewport. If the Actor is dragged i ...

Packaged project crashes on launch if third string literal in NSLOCTEXT macro is an empty string

Using the NSLOCTEXT macro with the third string literal as an empty string causes a packaged game to immediately crash on launch. No Crash Reporter window opens, and no log is created. A sample pro ...

Component default data can be lost for a non-nativized Blueprint class that inherits the component from a nativized parent Blueprint class.

This is a regression that was introduced by the fix for [Link Removed]. The fix makes an invalid assumption that instances of components whose archetypes are inherited by a non-nativized child Blue ...

Remote standalone build of a project fails due to incorrect path to project's Info.plist file

Attempting to use UAT on Windows to remotely create a standalone build of a project for Mac fails in 4.19. The error message indicates that it cannot find part of the path to the project's Info.plis ...

FBX material IDs from 3DS Max are reordered in automatic LOD generation

This appears to be a UE4 bug in the way it handles the importing of FBX Material IDs from 3DS Max exports.Max uses set Mat IDs to organize multiple materials on a single object.UE4 correctly handles t ...

Selecting components/channels does not display the 3D trajectory

When ParallelExecutor is enabled, Japanese build output of VisualStudio garbled

From UE4.20, Japanese build output of VisualStudio garbled. Below is a comparison between 4.19 and 4.20. ・4.19.2 1>------ すべてのリビルド開始: プロジェクト:MyProject3, 構成:Development_Editor x64 ------ 1> Clea ...

Editor crashes if Sequencer has keyframes for a variable that has changed

The Editor crashes if loaded sequence has keyframes for an actor variable that has been changed, instead of soft erroring out. This was reported and tested on 4.20.3 (CL-4369336). It was reproduced ...

ProjectWorldLocationToWidgetPositionWithDistance does not work properly when changed display scale of Windows (PIE only)

Stereo layers persist in HMD after VR Preview

Stereo layers persist in the HMD after VR Preview is closed.  This persists through opening other maps and using VR Preview in those maps. StreamChangelistOccurs?//UE4/Main4305553Yes//UE4/Main429899 ...