32bit files not saving with an SFK file in SF 5.0

[William Choi]

Is it just me? I try saving my large wav files which are 32bit IEEE Type 3 bitrates and it doesn't save the SFK file with it! It is absolutely crucial that I have these cuz its a bitch to wait for the big ones to load all the time.
Is there a setting to automatically make one?
Or does Soundforge 5 doesn't like to do this with 32 bit files. I tested it with 16bit ones and they make them all the time regardless of the size of the file.