OVR LipSync .WAV conversion to OVR asset creating empty file in UE5

I'm trying to create OVR files from my .WAV files and it's creating empty files. All the Viseme values are zero

When I grab the OVR file from the demo project and hook up to my character, it works fine. So the issue is definitely the OVR WAV file asset not being created correctly. 

I already tried this : https://forums.unrealengine.com/t/anyone-get-oculus-ovr-lipsync-plugin-working-in-ue5/560670/2  which sorted the "crashing upon trying to create" issue. But still didn't create a proper asset.

Will there be a new build of this plug in?