Last night I created another short file from scratch but entered pitch via my MIDI kbd instead of via the numbers on my QWERTY keyboard. I submitted that file for a layout question at
That file had no problem with sound. I’ll be interested in what your staff discovers about the file that doesn’t work. For may own purposes I may try exporting as XML and opening in a new file to see if that will fix the sound problem.
Thanks for taking this on.