Don't know what caused it, but you should never lose hours of work. First of all, if you haven't saved in hours, you need to make it a habit to save often. PTPA also can make backup files each time you save. Look at Opt, Preferences and click on the File tab. You'll see towards the bottom the settings for creating backups everytime you save.


John

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Desktop-ASUS-I7 Win10Pro 32GB 12TB SATA

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