Is Scene Graph sound_component spatial audio broken in UEFN?

Hi, I am trying to figure out whether I am missing something with Scene Graph audio, or whether this is just a current limitation / known issue.

What I am doing:

  • Import a WAV into UEFN
  • Create a preset from /Metasound/DefaultAssets/Sources/MSS_PlayRandom_Oneshot
  • Assign that MSS file to a sound_component on an entity in a prefab
  • Add the WAV to the array on the component
  • Assign a Sound Attenuation asset

What I am seeing:

  • The MSS graph seems to be read-only
  • Saving the preset gives this asset check warning about OutputFormat, saying it has an override of Stereo while default is Mono
  • The suggested fix says it resets it, but it does not seem to actually change anything
  • The warning keeps coming back
  • Most importantly, attenuation does not seem to work at all. The sound behaves like it is playing at the player/listener location instead of the prefab/entity location

I also tried mono and stereo WAV imports just to test it, and there was no difference.

So I am wondering:

  • Is this just way it is right now?
  • Is there a proper way to create MSS assets for this in UEFN?
  • Is there a UE-to-UEFN workflow for it?
  • Or is this a known bug with Scene Graph audio / sound_component?

Any clarification would be appreciated. I mainly just want to know whether I am missing the intended setup or chasing something that is not working.

I have no idea what I finally did, but I got the sound attenuation to work:

Most importantly, attenuation does not seem to work at all. The sound behaves like it is playing at the player/listener location instead of the prefab/entity location

It befuddles my mind. I ain’t touching it again.

But, it doesn’t appear there is any way to get rid of this whole save / asset check warning loop:

Illegal property override: Value (MSS_SA_SFX.OutputFormat) has an override of "Stereo" (default "Mono") for property "/Script/MetasoundEngine.MetaSoundSource:OutputFormat" on an instance of "/Script/MetasoundEngine.MetaSoundSource".

Super annoying. Hope it is fixed soon.