Hi so I am just starting off on creating CDLC, I am doing a 7 string song where I have most of the lead minus the solo set as the main lead, on rocksmith its showing the X does not exist HOWEVER, its underneath as an alternate lead, and the 6 string guitar solo section is showing as bonus lead, rhythm is just fine. in the tool kit I have my lead as Lead with lead priority and the solo as lead bonus section.

Don't use the toolkit, switch to the DLC Builder and it'll make your life easier.