Unreal 5.3 + Audio2Face + Livelink. Problem with audio

I’m having trouble sending audio from Audio2Face to Unreal via Livelink. The animations are arriving correctly in my Metahuman, but the audio plays for a second and then abruptly cuts out. I configured Livelink to send a 48000hz .wav file. The animations are fine. But I suspect the audio is arriving and Unreal doesn’t know what to do with it. Any input or help would be helpful! Thank you very much!