I'm having trouble with some soundfonts where I can see that the loop points are all set properly, but the looped regions do not loop. When I look at any of the SAMPLES and hit Play button the sample plays looped, as intended. But when I view INSTRUMENTS and PRESETS and play using the virtual keyboard, nothing loops. Likewise, nothing loops when I use the soundfont in other programs.
Any idea what the cause might be? I have no envelopes set at all, and of course in the Instruments I've set all the samples' "loop playback" setting to loop indefinitely.