Recorded audio file is either empty or truncated. Any fix?

[tu11ym0n]

In the past I've used Hosting AU to open up keyboard plugins that don't have standalone recorders, and use Hosting AU to record what I'm playing so that I remember my improvised ideas.

However lately the recorded WAV file is either empty or severely truncated, where it might just contain the first second or two of what I've played. The Hosting AU UI shows that it has recorded for over 3 minutes, but the WAV file is 2 seconds or less.

I've tried changing the directory of where the file gets saved, but that hasn't made a difference. I've tried restarting and reinstalling Hosting AU to no avail.

Any idea what is wrong?

FWIW I'm running Mojave 10.14.6.