So, I've finished a song, and it works perfectly without DD. However, something odd is occurring when I add DD. For some reason, power chords (drop tuned) at frets 1, 2, and 3 are showing up as empty chord panes (similar to the repeat panes). When the difficulty is low, the single notes show up fine, but once they transform to chords, they are invisible. Chords at higher frets appear as usual. The games still expects me to play the correct chords, but just isn't showing them. I've created several CDLC, and have never encountered this phenomenon before. Any ideas on what's going on?