Your dim symbol is just blank. I’m not sure why or how you got to this point, but you need to redefine it globally. Select it, then click the Edit Component pencil:
In the Edit Chord Symbol Component window you can now make a global change to the glyph and positioning. Delete the blank glyph and add the correct one. I left your chord symbol Engraving Options percentage settings alone, so I scaled that glyph to 225% in this window.
Hit OK and you’ve made a global change to that glyph that will work for all roots. Do not make further changes in the Project Default Chord Symbol Appearances window or they will only be for that particular root.
Lucky Southern (KJ Solo) - rvsd.dorico (800.3 KB)