rendering alters instrument sounds

hello, my problem is that when i render the renoise track i’m working on, the resultant wav sounds very different to when i play the track within renoise, i don’t mean just lower sound quality… the actual sounds of my instruments have changed. It sounds as though the instument envelopes are disabled for the rendered version, or a plugin isn’t working or something…

Is there any reason that something like this should happen? Is there anythong o can do to correct it?

thanks for your help

mm, I can’t replicate it. I hope it was just me being thick. I’ll post back if i figure out what it was…