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    I'm having this exact same problem, would love to know why Ableton won't recognize the Jam's third input, even though it sees my aggregate device (3 in 4 out). I'm using an Apogee Duet 2 as my clock, and the latest Live 9. Had the same issue on both Lion and Mavericks.
    Scotty Danger 3 months ago
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    Update: it works in Garageband, so this is definitely an Ableton issue.
    Scotty Danger 3 months ago