Niagara Oscilloscope Attribute Won't package

Development Asset Creation FX
, , , , ,
1

There seems to be a bug with the Niagara Audio Oscilloscope data interface not working properly on packaged versions of Unreal Engine (Only tested with Windows x64). When Audio and this data interface are both referenced the packaged product will not load and ends up hanging on launch with the error

[  0]LogAudio: Display: Waited XX.XXXX ms for audio thread.

This just gets repeated indefinitely with no progress beyond this point. There is no issue in the editor, only after the project has been packaged. It happens in a brand new empty project as well.

Steps to reproduce:

  1. Create a new project
  2. Create a Niagara system with an Audio Oscilloscope attribute and add it to Emitter Spawn.
  3. Add the Niagara system to the level (auto activate)
  4. Add a sound file to the level as well
  5. Package project Windows (dev or shipping seems to make no difference)
  6. profit (or lack thereof…)
2

As a wokaround setting

[Audio] UseAudioThread=false

in DefaultEngine,ini appears to allow the project to run.