coldrampage, I appreciate the response.
I ctrl+A -> ctrl+C to copy all the notes so I didn't lose my work, erased track difficulty (did this for all tracks, it deleted all of the notes on each of the tracks), pasted my notes back in, and the problem persists. Not sure how to re-enable dynamic difficulty.
I'm not sure how I did it but I accidentally made it so every phrase is set to the same difficulty, meaning that in rs2014 all the purple section bars are the same height. How do I undo this so the sections go back to having various heights based on the difficulty (amount of notes) of each section?