Also, it's a pity you didn't answer some of the questions that the forum members asked.

E.g.:

Presumably, you are running as Administrator? (Right-click desktop icon, select Run As Administrator)

And you have RealBand installed in a top-level folder? (e.g. C:\RealBand\)

Have you tried saving to a different format to see if you get the same or a different error?

Which of the Save options are you using?

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