Unreal Engine Issues

XR -ARKit - Tracked Planes are not attached to the real world objects when moving the camera around

When the user attempts to place an object on a tracked plane it slides around the environment not staying in the expected place. Using the ARDebugcheck project with the show planes option you can se ...

Action Rpg Sample Creating a new GameplayCue handler crashes the editor in 4.24

In Action Rpg sample, creating a new Blueprint of type GameplayCueNotifyActor or GameplayCueNotifyStatic, results in an Engine crash. The call stack leads to a PrintF Slate warning message that woul ...

Cannot Undo Blueprint Nodes Placed Using Shortcuts

Nodes that are placed using shortcuts (ex. B+LMB for a branch node) cannot be undone using CTRL+Z. Found in 4.10.4 binary. Reproduced in 4.11 Preview 6 binary and Main CL 2894512. ...

4.16.1 Android Development builds crash on start with "unfortunately [App] has stopped"

When Building Light for a SubLevel of a project, BSPs will be built into the level regardless if hidden or not

BSPs will be built with light/shadow extrapolated even if they are placed in a hidden sub_level of the project at the time of building. Also Tested in 4.10.4, 4.11 Preview 6 and Dev-Editor-CL-28772 ...

Generate Project Files is not automatically run after Switch Unreal Engine Version on Mac

When converting a project to a different version of the engine, the GenerateProjectFiles.command process is not ran as it would be on Windows with GenerateProjectFiles.bat. This can cause issues, es ...

Sub Classing World Settings Causes Hot Reload to Crash

When creating a subclass of World Settings, attempting to use the in-editor compile button to compile the code causes the editor to crash. Found in 4.11 Preview 4. Reproduced in 4.10.2 binary and ...

PhysX Crash when spawning Instanced Static Mesh actors at Runtime

Bug generated from crash reporter. This crash has been found in 4.7.6 and still occurs in 4.8.3 and 4.9.2 to users. One user in particular still, and he experiences it often. I have not been able ...

Duplicating Example Level Prevents the Copy From Being Saved

In a project, if you duplicate the example level and attempt to save it, the save will finish, but the asterisk will remain on the file. Attempting to open the duplicated map will prompt another sav ...

Play Rates are not reverted when HAP Media Plugin is disabled

Enabling the HAP Media player plugin permanently affects the thinned Play Rates of the Media Player asset. Tested in 4.23.1 (CL - 9631420), 4.24.0 (CL - 10091930), 4.25 (CL - 10091038) ...