I installed a new DAW and connected all data drives as usual. I have built my DAW many times and had no problem until this time, strangely, all old Nuendo projects ( and Cubase projects, I also run Cubase 8.5 ) cannot be saved over. I have Auto-save on and every time Nuendo auto-save it will alert me that the npr projects cannot be written over and it will save in whatever name-01.npr then the next auto saving time, whatever name-02.npr etc… The strange thing is that besides not being able to overwrite the old file, it cannot auto save in BAK file which is the default for auto save. I have checked the drive is not write protect.
Then I deleted the old npr file ( backup first of course ) and saved it using the original name, then everything is back to normal, it will save in BAK again. Anyone can explain this behaviour?