Bristol_Jonesey
dcumpian
Slugbaby
Just a guess (i'm not at my DAW), but couldn't you delete the audio (but not the envelope) and set the audio track Input to the Synth Output? That would keep any settings or FX intact.
From experience, if you delete the audio, the envelopes get deleted as well, unless there is another take remaining.
Regards,
Dan
Not so if you do a Delete Special and deselect Track Automation
Shows what happens when you get into a specific workflow pattern, lol.
Dan