It is possible that you try to back up an unsupported type of data. Handy Backup doesn’t support incremental backup of several types of data:
Support for incremental backup of these data is in implementation.
Related Pages:
See also: FAQ | Program Installation and Usage:
⇒ Can the program do a full system backup?
⇒ Why the program performs full backup, even though I have set it to perform incremental backup?
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