On certain CDLC songs, the fretboard will stay in a certain area without moving (i.e. frets 2-10) and will not scroll down even if there are notes on the 15th or 20th fret. If needed, I can provide pictures.

http://ignition.customsforge.com/cfsm

This is either:

 

a} The CDLC has no sections

or

b} The CDLC maker didn't auto-generate Dynamic Difficulty when they made the package

 

Usually can be fixed by importing the CDLC into the Rocksmith Toolkit and re-packaging it with DD turned on or by using Customsforge Song Manager