Can't overdub with M-Audio M-Track DUO

Yes. I see you still haven’t had this working since you reported this issue last May: Can't overdub with interface - #17 by HarryBoo

But misery loves company. You are not the only one with this issue with the M-Audio M-Track. For your reading pleasure:

I think someone was successful by changing to Scarlett and another by sending Audacity’s output to the PC headphones.`

Let us know if you ever get it to work. :smiley: