Steam Audio Occlusion Causes sounds to be inaudible or very quiet

Hello! I have implemented the Steam Audio plugin into my project; it seems to be working. BUT I have encountered an issue with enabling occlusion (In an empty room with no obstacles). With occlusion off, I can hear the enemy running, but with occlusion set to Simulation-Defined, running audio plays at first; when the enemy goes idle, the running instance is stopped, and after the enemy starts moving, no audio is heard. Also, with occlusion enabled, all other sounds become super quiet. + I don’t know if this is a normal thing in FMOD, but enabling Steam Audio occlusion makes any FMOD event silent when playing it in FMOD Studio.

My set up:

  • UE 5.3;

  • Fmod studio 2.03.12;

  • Steam Audio 4.8.1;

  • In Fmod Steam Audio Spacializer attached to the Event Master track.

  • In UE5 → FMOD Studio → Plugin Files → phonon_fmod

  • In UE5 → Steam Audio → Audio Engine → FMOD Studio

  • In UE5 Room static mesh has a Steam Geometry component with a material;

  • In UE5 Static Geometry is exported;

  • In UE5 Player has Steam Audio Listener component;

  • In UE5 Sound sorce has Steam Audio Source component.