Unreal Engine Issues

No Editor Audio on Linux when using ALSA

No sound play in editor when using ALSA (Advanced Linux Sound Architecture), and log spam when launching a project ...

Ensure failing when compiling Macro Library blueprints

loading hangs on new level with the new audio engine and media sound components

When enabling the AudioDeviceModuleName=AudioMixerXAudio2 setting in the windowsengine.ini file it causes new level loads to lock up. This may be due to the garbage collection stuck in a loop wai ...

Live Coding Doesn't Appear to Correctly Reload or Reinit Automation Spec Tests

Something in the way that live coding interacts with the test system, or how the tests are loaded at startup and initialized, isn't quite matching up.   ...

[MetaSounds] - If the audio output hits an extreme Gain value, the Audio Meter Widget stops responding

It's possible to have the Audio Meter widget stop responding if you set the Gain really high. It will cease to work as long as the MetaSound window is open. Closing and reopening the MetaSound windo ...

Data Layer replication bug

The bug is data layer runtime states can get out of sync between a client and a host depending on the initial runtime state of a data layer and the size of the replicated data layer names array. Se ...

[CrashReport] UE4Editor_Engine!FStaticMeshVertexBuffer::BindLightMapVertexBuffer() [staticmeshvertexbuffer.cpp:495]

User comment from crash group:reimporting fbx 491 void FStaticMeshVertexBuffer::BindLightMapVertexBuffer(const FVertexFactory* VertexFactory, FStaticMeshDataType& Data, int LightMapCoordinate ...

"Support Compute Skincache" throws an Assert for games on Linux

After enabling "Support Compute Skincache" in the project settings and packaging a game on Linux, the packaged game will throw an assert. Any setting that turns "Support Compute Skincache" on automa ...

Inconsistent SkeletalMesh physics controls

There are inconsistencies with how the inherited body + bodies of a skeletal mesh are treated across the various inherited/overridden primitive component functions, and their multi-body forms. For ...

Interface with one or more BlueprintNativeEvent declarations will lead to a compile failure during packaging with Blueprint nativization enabled.

In the UHT boilerplate that's generated for the FGUseableInterface type, there is a pure virtual declaration that's emitted for the BlueprintNativeEvent's required _Implementation() method: #define ...