Hi. Just purchased locksmith after someone recommended it to learn how to play lead on certain songs. Purchased cherub pumpkins and went through the steps to run the cdlc. I can put any of them in, but when I open them I can only get through to the tuning section. After I finish tuning, it starts loading and then freezes. Any suggestions? Running Mac OS High Sierra 10.13.4, MacBook pro 2015 Rocksmith- latest update as of 7/9/18 Thanks