We recently updated our project to Unity 5.5.2 (from 5.5.1) and it seems like the spatial blend setting for audio sources stopped working on our Oculus spatialized sounds.
We're dynamically generating audio sources from preset data and all of our settings are getting applied to the audio sources from what I can tell, but for whatever reason the spatial blend doesn't seem to be working anymore. On the sources in question, we're setting spatial blend to 0.5 for a mix of both 2D and 3D spatialized audio. However, when out of range of the source (a couple meters) the audio can't be heard at all. I did go through our code that instantiates the audio sources to make sure that we're setting the source's parameters with ONSPAudioSource's SetParameters method, but that didn't solve our issue.
Did the Oculus audio plugin for Unity stop supporting spatial blend settings, is this a bug, or am I missing something else?