Unreal Engine Issues

World Memory Leaks crash with a hidden sublevel to a redirector

From UDN: The reason it crashes is because Child doesn't get garbage collected, which is because it still has the RF_Standalone flag. UEditorEngine::EditorDestroyWorld clears RF_Standalone flag ...

Unable to play level sequences or actor sequences while the game is paused

This is caused by several failures in the custom ticking and update logic for level and actor sequences. A possible solution is shelved in 14859265, but will need testing with all known cases of pau ...

[CrashReport] UE4Editor-Engine!FPrecomputedVolumetricLightmapData::ReleaseRHI() [PrecomputedVolumetricLightmap.cpp:303]

Crashed when selecting a class for a property in BP

Collision boxes always have Navigation Area Class reset to NavArea_Obstacle on project load

Every time when reopening the project, Nav Area Class on collision geometry gets reset to "NavArea_Obstacle", instead of maintaining its state. ...

The Device Output Log does not transfer the console commands to iOS devices as expected

Crash when plugging Depth Fade to Base Color and using Required Texture Resolution mode

Crash when plugging Depth Fade to Base Color and using Required Texture Resolution mode Hi, We have a material that uses the Depth Fade node for the Opacity and Base Color. However, the engine cras ...

Error when exporting OBJ unattended

When doing an unattended OBJ export with python. The export will fail and give the atteched callstack. ...

Ensure condition failed: Play an animation in the finished animation event called from UUserWidget::StopAllAnimation

If a widget has playing animation node in finished animation event, calling StopAllAnimations appends a new UMGSequncePlayer to ActiveSequencePlayers array during array iteration and cause ensure co ...

References to Data Assets that inherit from Blueprints may be broken during reinstancing

It is possible to create new Data Asset instances in the editor that inherit from a blueprint-defined subclass of UDataAsset. This flow is not very well supported, and generally it is safer to just ...