audition object and freeze not working

Hi Steven,

I have just noticed that the "freeze" and "audition selected objects" commands is not functioning as expected for me. I get no errors but the freezed object is silent (as is the audio freeze file that is created). Similarly when using the audition command no sound is outputted.

This is with the api disabled.

I am using csound64 for non-realtime rendering and csound float for real time.  

Many Thanks
Peiman