Backups & restore points · Status and problems
What does "The first backup hasn't finished yet" mean?
Short answer: Storage Studio closed while a set's first backup was running. Nothing is lost — press Back up now and it carries on from where it stopped.
Storage Studio was closed — or the Mac shut down — while a set's very first backup was still running. The message reads "The first backup hasn't finished yet — Storage Studio closed while it was running. Nothing is lost; use Back up now to carry on."
Press Back up now. It continues from where it stopped rather than starting over, because data already saved isn't sent again.