Hi Axel,
Assuming you pressed the return/enter key...
Are you sure you are mastering the CueCore? This is required for the process. You can set this up in Patch -> Universe and double click the 'Outlet' part of the universe. You can map a universe to an output of the CueCore. After that, try the dumping again.
Goodluck!
Greetings,
Bootsy