Unreal Engine Issues

Niagara Oscilloscope hangs indefinitely in cooked build

Cooked games will hang on startup when using the Oscilloscope data interface due to an indefinite wait in FNiagaraSubmixListener::UnregisterFromSubmix  When setting GCVarEnableAudioCommandLogging t ...

Converting a function with local variables to an event crashes editor

When converting a function with a local variable to an event, editor crashes. Issue does not occur in 4.25, therefore a regression. ...

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. ...