Unreal Engine Issues

Crash when using Set Collision Response on a Destructible component

Crash when using Set Collision Response on a Destructible component. The repro is using the Construction Script but this also happens using Event Begin Play in the Event Graph on play. It crashing ...

GPU specific issue with Lighting while moving - GTX 770

While testing GPU - ContentExamples - Lighting - Nvidia gtx 770 in the 4.16 GPU Compat Pass, I noticed a strange effect on lights while the player is in motion. I've had multiple people attempt to ...

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 ...