FS-3794 I think I got to the bottom of the thing you hit with intercept, please update to this version

allow enable_file_write_buffering to alternatively allow you to set the exact size of the pre buffer

FS-3910 It seems to have a problem keeping up with the realtime audio.  Try this patch that introduces some prebuffering

FS-3916 --resolve i don't think its necessary for info but you could try it with another FS process to confirm