SK880 user,
   what this means is that you can't save from the location you are saving from in the internal memory to any other spot on your hard drive.  I remember seing this come up when I would try to load a sound from a block which contained a sampled sound into the internal memory.  Here is an example:
Say I have a single sound which I want to load, and when I find it in the load display it is at the location marked 121-5.  When I try to load it into 110-3 the same display you saw comes up.  I found out from Generalmusic that you can only load and save into exactly the same locations they came from.  I hope this helps
George Kaye
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George Kaye
Kaye's Music Scene (Closed after 51 years)
West Hills, California
(Retired 2021)