I am having a problem that sounds something like this and maybe someone can help me out. I have a JTV-69 and in workbench I set up some presets in my Custom 1 setting. Martin Double Drop D, Gretch Double Drop D, Banjo open G, Dobro open E, and a Firebird open A. When i am plugged directly into my DT-25 with a regular guitar cable everything is there the models and the tunings. When I connect my guitar to my HD 500 through the link cable the models are there but the tunings are gone. Tried to find something in the manuals but I am really not sure where to look for this problem. Is there a setting in the HD 500 that I need to change?