I don't know which presets *NUMBERS* you are trying to back up.
Maybe you are backing up factory presets?
From the V4.0 Release Notes:
If you use BLOCK COPY, do NOT try to backup factory presets at the same time
If BLOCK COPY is used on factory presets, the resulting saved files will be
corrupted.
Have you followed the Release Notes indications for a correct OS installation? A CLEAR SETUP is a must.
best
I
