Recorded tracks playing back on Qu-24, when other apps (iTunes, YouTube) do.

I bought a used QU-24 and have updated the firmware to 1.98. I’m having trouble routing recorded tracks from Logic Pro X back to the QU-24. I have successfully managed to route a stereo feed back to ST1 (via USB streaming in SETUP) and have audio from iTunes and YouTube playback just fine. Where I’m stuffed is getting the QU-24 to see the recorded tracks we laid down the other night. Plenty of activity in Logic Pro with the Stereo out hitting yellow, but nothing goes over to the QU-24. It is not receiving that signal at all on ST1 or when I route to Channels 23 and 24. Just…nothing. Please help…not much hair left. TIA, Peter

The title should have read ‘Recorded tracks NOT playing back on Qu-24, when other apps (iTunes, YouTube) do.