My steps are:
New File
Import samples as wav file
check they are there and make a sound
Create a new Instrument
Drag Drop samples into instrument
this gives the instrument columns for all samples
Create new Preset
Drag drop the Instrument to the preset
Bind Samples to Instrument
Bind Instrument to Preset
Save the Sf2
Export as Sfz
Frequently either I get no samples in the Sfz sub-folder, or if I open them in Audacity, they are silent. Having said that, I have had success by doing the exact steps I just described, as I wrote this.
So this is a tough question. Which of those steps, if missed would be most likely to cause either no samples, or silent samples?
EDIT: Further to this every now and again the actual samples loaded into my work file are silent as well.When Polyphone saves, it opens to the saved file. I have lost my work.